Unilit Stone Repair Mortar – Site Mixed

UNILIT NATURAL HYDRAULIC LIME STONE REPAIR MORTARS – PREMIXED

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Telling Natural Hydraulic Lime.
Telling manufacture a range of natural lime mortar products for various applications including mortar, plaster, render, screeds and concretes, together with stabilisation and consolidation grouts, mesh reinforcement and lime paints and finishes. The natural hydraulic lime products are manufactured using a modern day manufacturing process which replicates the strength, porosity, adhesion and flexibility of historic mortars.
The products are guaranteed against failure for 10 years and are warranted against defect under a professional indemnity insurance.

Unilit Bonding Layers.
A range of preparation products designed to stabilise the existing surface and provide the optimum bond for following layers of Unilit mortars. For application of hydraulic lime renders and plasters over concrete, or where background surfaces are excessively salt laden, damp or friable, a Unilit 10 or Unilit 15 bonding layer must be applied to ensure optimum bond to the substrate and to provide a key for subsequent layers.

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Unilit 10 Bonding Layer. – Spatterdash coat for uneven surfaces.
Unilit 15 Bonding Layer. – Multi-purpose bonding layer.
Unilit Natural Hydraulic Lime Mortars.

Unilit Undercoat mortars are designed using the Unilit Natural Hydraulic Lime and the optimum grading of aggregate to ensure the consistency, performance and ease of application of the mortars. The
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Unilit 30 – Waterproofing and Stabilising undercoat mortar.
Unilit 35 – Mineral undercoat and coarse finishing mortar – maximum granular size: 3 mm.
Unilit 35M – Mineral undercoat and medium finishing mortar – maximum granular size: 1.5 mm.

Unilit Natural Hydraulic Lime Finishing Mortars.
Specify these finishing mortars as the final layer in the clauses for the background layers. Click on the name below to jump to the product and specification details.
Unilit 40 – Fine weatherproof finishing mortar for external render. Smooth or fine textured finish.
Unilit 45 – Fine finishing mortar for internal plaster. Smooth or fine textured finish.
Unilit 400 – Fine through coloured finishing mortar for internal and external render. Smooth or fine textured finish.
Unilit 300 – Medium through coloured finishing mortars for internal and external render.
Unilit 200 – Coarse through coloured finishing mortars for internal and external render.
Unilit 30 – Coarse weatherproof finishing mortar for external render.
Unilit 35M – Medium finishing mortar.
Unilit 35 – Coarse finishing mortar.

For mortar repairs to stone Unilit can be applied in layers consisting of a bonding layer to optimise the bond to the existing masonry, undercoat layers to build up the required thickness and profile and a finishing coat to match the existing masonry colour and texture.
The range of Unilit Natural Hydraulic Lime mortars includes traditional lime sand mixes – Unilit 35, Unilit 35M, Telling Fen X Preblend and Unilit Fen X and Sand, which can then be supplemented by the use of Unilit 10 and Unilit 15 bonding layers for unstable substrates, Telling Brick Mesh for reinforcement of the junction of dissimilar backgrounds large voids and over timber framed areas, Unilit 30 waterproofing and stabilising mortar for damp and salt laden areas, Unilit 20 lightweight insulating mortar for thermal improvement and where the thickness of plaster or the nature of the substrate requires a lightweight plaster, and the extensive range of finishes.
We recommend where possible a Unilit premixed finish be applied to ensure the suitability of the mix to achieve the required finish. Finishes can be produced using Unilit Fen X and sand mixes however the grading of the sand is critical on the success of the finishing mortar, therefore where smooth or fine textured finishes are required the premixed range should be selected. Internal Unilit 45 and weatherproof external Unilit 40/ 15P1 finishes are available in a range of textures, for smooth and fine textured through to coarse and roughcast finishes. A fully compatible paint system should be used to maintain the high degree of vapour permeability – Corical Lime Paint. Alternatively, Unilit 200 (coarse), 300 (medium) and 400 (fine) through coloured finishes are available in a range of colours.

Unilit 10 Bonding Layer.
A bonding layer based on natural hydraulic lime and silica sand designed to function within the Unilit system as a bonding bridge between the weak substrate and the mortar – Unilit 20, 25, 30 or 35.
Unilit 10 is designed for backgrounds unsuitable to guarantee an optimum bonding of the Unilit mortar, such as surfaces with a closed structure (concrete slabs or very old masonry) and substrates completely saturated with water. Applied in open structure the product will not impair the permeability of the wall.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 4 N/mm2 after 60 days; 6 N/mm2 after 90 days.
Bonding strength (DIN 18.555): 2 N/mm2.
pH: > 10.5.
Maximum granular size: 4 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Application: Unilit 10 should be applied by tyrolean gun or similar on dry or damp substrates. The layer must not exceed 1mm and coverage should not be greater than 70% of the surface area. Unilit 10 requires the addition of 5.2 to 7.5 litres of water per 30kg bag, mechanically mixed for 3 to 5 minutes.

Unilit 15 Bonding Layer.
A range of 3 fine bonding layers based on natural hydraulic lime and appropriate additional aggregates, designed to function within the Unilit system as a bonding bridge between the weak substrate (old lime plastering, reinforced concrete, old masonry, etc.) and the mortar. Substrates of reinforced concrete must be treated with a layer of Unilit 15 before applying finishing mortars Unilit 200, 300, or 400. Unilit 15 can also be used as a preparatory treatment for completely saturated backgrounds and will not impair the permeability of the wall.
Unilit 15/P0 is designed as a fine legalizing filler when old lime renders are removed and prepares the substrate for further treatment.
Unilit 15/P1 is designed as a bonding and/or finishing layer it is applied in a 2-4 mm layer by trowel. Unilit 15 P1 can also be used as lime wash or slurry/primer coat for lime paint and is applied in a slurry layer using a brush.
Unilit 15/P2 is designed as a keying or priming coat in a maximum layer of 10 mm.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Bending – tensile strength: 4 N/mm2 after 60 days; 6 N/mm2 after 90 days.
Bonding strength (DIN 18.555): 2 N/mm2.
pH: > 10.5.
Maximum granular size:
– Unilit 15/P0: 0.01 mm.
– Unilit 15/P1: 1 mm.
– Unilit 15/P2: 2 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Application: Unilit 15 P1 should be applied by steel towel in a 2 – 4mm layer and left with an open texture for the application of following layers. Where a thicker bonding layer is required Unilit 15 P2 can be applied in up to 10mm layers as for P1. Unilit 15 P1 & P2 require only the addition of 4.5 to 5.25 litres of water per 30kg bag mechanically mixed for 2 to 3 minutes.

Unilit 30.
A dry, premixed mineral stabilising mortar based on hydraulic, naturally pure and selected lime. Designed particularly for situations where rising damp or capillary action is prevalent, the mortar is characterised by a high plasticity, slow but strong bonding and a low salt content.
Unilit 30 is impermeable to water but very vapour permeable and can be used as an undercoat or as a coarse finishing coat as part of a Unilit mortar system. The mortar can be applied to damp walls of buildings and cellars.
Where excessive levels of damp and salts are present the minimum total layer thickness of Unilit 30 must be 20 mm.
If a finish is applied to Unilit 30 after 1 week, a bonding layer of Unilit 15/P1 or P2 is required.
Colour: Beige, or coloured with the addition of Unilit Natural Earth Ochre Pigments. Unilit 30 can be applied as a coarse finishing layer. Where a smooth or fine textured finish is required Unilit 40, 15 P1 or 400 are recommended as the finishing coat. For a coloured finishing mortar Unilit 200 coarse, 300 medium, or 400 fine through coloured finishes or Unilit 15 P1 or Unilit 40 with the addition of Natural Earth Ochre pigment can be applied within 2 or 3 days after the application of Unilit 30. A colour finish can also be applied with a lime or silicate paint – specify in section M60. Lime paint, limewash or silicate paint finishes are available from Telling Lime Products. The mortar must be allowed to dry for 2 to 3 weeks before applying silicate paint.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 7 N/mm2.
Modulus of elasticity: 6130 N/mm2.
Vapour diffusion resistance: µ= 10.
Coefficient of thermal conductivity: 0.65 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Product reference (mortar): Unilit 30 waterproofing and stabilising natural hydraulic lime mortar.
Mix proportions: Seek advice from Telling.
Application: Mix Unilit 30 with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 4 minutes.
Apply directly to either a dry or damp substrate. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.
Maximum thickness per layer: 15-20 mm.
Minimum total thickness of layers: 20 mm.
Undercoat(s): Use when the total thickness of mortar repair exceeds the limit for the finishing coat thickness recommended by the manufacturer. Build up in layers as necessary, each layer not exceeding the thickness recommended by the manufacturer. Layers should be ruled flat and lightly scratched between coats, with the final undercoat layer left with a wood float open finish to receive the finishing layer.
Finishing coat: To match approved sample(s) .
Finished thickness: Seek advice from Telling.
Other requirements:
Apply a bonding layer of Unilit 15/P1 or P2 before applying finish.
Allow mortar to dry for 2 to 3 weeks before applying silicate paint.

Unilit 35.
A traditional, dry, premixed mineral undercoat finishing mortar based on hydraulic, naturally pure and selected lime, characterised by a high plasticity, slow but strong bonding and a low salt content.
Unilit 35 is very vapour permeable and is completely compatible with the Unilit system as an undercoat or as a finishing layer, for internal and external use providing that excessive damp or salt problems are not prevalent. Recommended for the renovation of old buildings.
The product must be decorated with a protective lime coating to make the system weatherproof.
Colour: Beige, or coloured with the addition of Unilit Natural Earth Ochre Pigments.
Unilit 35 can be applied as a coarse textured finishing layer. Where a smooth or fine textured finish is required Unilit 40, Unilit 400 or Unilit 15 P1 are recommended as the finishing coat. For a coloured finishing mortar Unilit 200 coarse, 300 medium or 400 fine through coloured finishes can be applied, or Unilit 15 P1 or Unilit 40 fine finishes with the addition of Natural Earth Ochre pigment applied can be applied within 2 or 3 days after the application of Unilit 35. A colour finish can also be applied with a lime or silicate paint – specify in section M60. Lime paint, limewash or silicate paint finishes are available from Telling Lime Products.
The mortar must be allowed to dry for 2 to 3 weeks before applying silicate paint.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 7 N/mm2.
Modulus of elasticity: 6130 N/mm2.
Vapour diffusion resistance: µ= 12.
Coefficient of thermal conductivity: 0.65 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 3 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Product reference (mortar): Unilit 35.
Mix proportions: Seek advice from Telling.
Application: Mix Unilit 35 with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 4 minutes.
Apply directly to dry substrates. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.
Maximum layer thickness: 10-15 mm.
Undercoat(s): Use when the total thickness of mortar repair exceeds the limit for the finishing coat thickness recommended by the manufacturer. Build up in layers as necessary, each layer not exceeding the thickness recommended by the manufacturer. Layers should be ruled flat and lightly scratched between coats, with the final undercoat layer left with a wood float open finish to receive the finishing layer.
Finishing coat: To match approved sample(s).
Finished thickness: Seek advice from Telling.
Other requirements:
Do not use mortar below ground level.
Apply weatherproofing layer of Unilit 15 P1 / 40 or Unilit 200 / 300 / 400 coloured finishing mortar, as clause (see guidance in this section).
Allow mortar to dry for 2 to 3 weeks before applying silicate paint.

Unilit 35M.
A traditional, dry, premixed mineral undercoat and finishing mortar based on hydraulic, naturally pure and selected lime, characterised by a high plasticity, slow but strong bonding and a low salt content.
Unilit 35M is very vapour permeable and is completely compatible with the Unilit system as an undercoat or as a finishing layer, for internal and external use providing that excessive damp or salt problems are not prevalent. Recommended for the renovation of old buildings.
The product must be decorated with a protective lime coating to make the system weatherproof.
Colour: Beige, or coloured with the addition of Unilit Natural Earth Ochre Pigments.
Unilit 35M can be applied as a medium textured finishing layer. Where a smooth or fine textured finish is required Unilit 40, Unilit 40 Or Unilit 15 P1 are recommended as the finishing coat. For a coloured finishing mortar Unilit 200 coarse, 300 medium or 400 fine through coloured finishes can be applied or Unilit 15 P1 or Unilit 40 fine finishes with the addition of Natural Earth Ochre pigment applied can be applied within 2 or 3 days after the application of Unilit 35M. A colour finish can also be applied with a lime or silicate paint – specify in section M60. Lime paint, limewash or silicate paint finishes are available from Telling Lime Products.
The mortar must be allowed to dry for 2 to 3 weeks before applying silicate paint.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 5.5 N/mm2.
Modulus of elasticity: 5500 N/mm2.
Vapour diffusion resistance: µ= 13.7.
Coefficient of thermal conductivity: 0.65 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 1.5 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Product reference (mortar): Unilit 35M.
Mix proportions: Seek advice from Telling.
Application: Mix Unilit 35M with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 4 minutes.
Apply directly to dry substrates. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.
Maximum layer thickness: 10-15 mm.
Undercoat(s): Use when the total thickness of mortar repair exceeds the limit for the finishing coat thickness recommended by the manufacturer. Build up in layers as necessary, each layer not exceeding the thickness recommended by the manufacturer. Layers should be ruled flat and lightly scratched between coats, with the final undercoat layer left with a wood float open finish to receive the finishing layer.
Finishing coat: To match approved sample(s).
Finished thickness: Seek advice from Telling.
Other requirements:
Do not use mortar below ground level.
Apply weatherproofing layer of Unilit 15 P1 / 40 or Unilit 200 / 300 / 400 coloured finishing mortar, as clause (see guidance in this section).
Allow mortar to dry for 2 to 3 weeks before applying silicate paint.

Unilit 40.
A dry, premixed mineral fine finishing mortar based on hydraulic, naturally pure and selected lime, and completely compatible with the Unilit system. Unilit 40 is applied for smooth or fine textured sponged or wood float finishes. Designed for applications where resistance against high impact and atmospheric influences are required and situations where rising damp or capillary action is prevalent, such as damp walls of buildings and cellars. The mortar is water repellent (weatherproof) but very vapour permeable, allowing humidity present in the wall to be able to rapidly migrate from the structure.
Colour: Beige, or coloured with the addition of Unilit Natural Earth Ochre Pigments.
Where a smooth or fine textured finish is required Unilit 40, Unilit 400 or Unilit 15 P1 are recommended as the finishing coat. For a coloured finishing mortar Unilit 200 coarse, 300 medium or 400 fine through coloured finishes can be applied, or Unilit 15 P1 or Unilit 40 fine finishes with the addition of Natural Earth Ochre pigment applied can be applied within 2 or 3 days after the application of Unilit 35. A colour finish can also be applied with a lime or silicate paint – specify in section M60. Lime paint, limewash or silicate paint finishes are available from Telling Lime Products.
The mortar must be allowed to dry for 2 to 3 weeks before applying silicate paint.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.5 N/mm2.
Compressive strength: 5 N/mm2 after 60 days; 6 N/mm2 after 90 days.
Modulus of elasticity: 6130 N/mm2.
Coefficient of thermal conductivity: 0.67 W/m °K.
Vapour diffusion resistance: µ= 10.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 0.7 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Preparation: The substrate must be clean and free of all traces of oil and grease. When the substrate has been treated with an impregnating product (silicones or similar) it is recommended to consult the supplier or manufacturer.
Manufacturer and reference(s): Telling Lime Products Limited, Primrose Avenue, Fordhouses, Wolverhampton, WV10 8AW. Tel: 01902 789 777. Fax: 01902 398 777. Email: info@telling.co.uk Web: http://www.telling.co.uk/
Product reference (bonding layer): Unilit 15/P0. Unilit 15/P1. / Unilit 15/P2.
Application: Mix Unilit 15 with clean water – 5 to 6 litres of water to 25 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 2 to 3 minutes.
Apply manually or mechanically to a dry or wet substrate. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 4 hours. Protect from frost for 48 to 72 hours.
Apply Unilit 15/P0 as a fine legalizing filler where old lime renders are removed.
Apply Unilit 15/P1 as a lime wash in a slurry layer using a brush. / Apply 2-4 mm thick finishing layer of Unilit 15/P1 by trowel.
Apply keying or priming coat of Unilit 15/P2 in a maximum layer of 10-15 mm.
Product reference (mortar): Unilit 40.
Mix proportions: Premixed Seek advice from Telling.
Application: Mix Unilit 40 with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically by stainless steel trowel to a dry or damp substrate in 2 layers (wet on wet). Total thickness: 3-4 mm. The mortar should be sponged or wood floated to the required finish.
If the substrate is too dry, dampen down the surface prior to application. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.
Undercoat(s): See above for Unilit 30, Unilit 35 and Unilit 35M.
Use when the total thickness of mortar repair exceeds the limit for the finishing coat thickness recommended by the manufacturer. Build up in layers as necessary, each layer not exceeding the thickness recommended by the manufacturer.
Finishing coat: Unilit 40 To match approved sample(s).
Finished thickness: 4mm (2 x 2mm coats) Seek advice from Telling.Other requirements: Allow mortar to dry for 2 to 3 weeks before applying silicate paint.

Unilit 45.
A traditional, dry, premixed mineral fine finishing mortar based on hydraulic, naturally pure and selected lime, characterised by a high plasticity, slow but strong bonding and a low salt content.
Unilit 45 is vapour permeable and is completely compatible with the Unilit system as a finishing layer, for internal use only providing that excessive damp or salt problems are not prevalent. Recommended for the renovation of old buildings.
Colour: Beige, or coloured with the addition of Unilit Natural Earth Ochre Pigments.
Unilit can be applied as a smooth or fine textured finishing layer. Alternatively, where a smooth or fine textured external finish is required refer to Unilit 40 section above. For a coloured finish Unilit 45 fine finish with the addition of Natural Earth Ochre pigment applied can be applied within 2 or 3 days after the application of Unilit bonding or undercoat layers. A colour finish can also be applied with a lime or silicate paint – specify in section M60. Lime paint, limewash or silicate paint finishes are available from Telling Lime Products.
The mortar must be allowed to dry for 2 to 3 weeks before applying silicate paint.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.5 N/mm2.
Compressive strength: 4 N/mm2 after 60 days; 5 N/mm2 after 90 days.
Modulus of elasticity: 6130 N/mm2.
Vapour diffusion resistance: µ= 10.
Coefficient of thermal conductivity: 0.67 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 0.7 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Preparation: The substrate must be clean and free of all traces of oil and grease. When the substrate has been treated with an impregnating product (silicones or similar) it is recommended to consult the supplier or manufacturer.
Manufacturer and reference(s): Telling Lime Products Limited, Primrose Avenue, Fordhouses, Wolverhampton, WV10 8AW. Tel: 01902 789 777. Fax: 01902 398 777. Email: info@telling.co.uk Web: http://www.telling.co.uk/
Product reference (bonding layer): Unilit 15/P0. Unilit 15/P1. / Unilit 15/P2.
Application: Mix Unilit 15 with clean water – 5 to 6 litres of water to 25 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 2 to 3 minutes.
Apply manually or mechanically to a dry or wet substrate. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 4 hours. Protect from frost for 48 to 72 hours.
Apply Unilit 15/P0 as a fine legalizing filler where old lime renders are removed.
Apply Unilit 15/P1 as a lime wash in a slurry layer using a brush. / Apply 2-4 mm thick finishing layer of Unilit 15/P1 by trowel.
Apply keying or priming coat of Unilit 15/P2 in a maximum layer of 10-15 mm.
Product reference (mortar): Unilit 45.
Mix proportions: Premixed Seek advice from Telling.
Application: Mix Unilit 45 with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically by stainless steel trowel to a dry or damp substrate in 2 layers (wet on wet). Total thickness: 3-4 mm. The mortar should be sponged or wood floated to the required finish.
If the substrate is too dry, dampen down the surface prior to application. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.
Undercoat(s): See above for Unilit 30, Unilit 35 and Unilit 35M.
Use when the total thickness of mortar repair exceeds the limit for the finishing coat thickness recommended by the manufacturer. Build up in layers as necessary, each layer not exceeding the thickness recommended by the manufacturer.
Finishing coat: Unilit 45 To match approved sample(s).
Finished thickness: 4mm (2 x 2mm coats) Seek advice from Telling.
Other requirements:
Do not use Unilit 45 mortar externally or below ground level.
Allow mortar to dry for 2 to 3 weeks before applying silicate paint.

Unilit 400.
A smooth or fine textured through coloured traditional, dry, premixed mineral finishing mortar based on hydraulic, naturally pure and selected lime and available in 12 standard colours and colours achievable using natural earth ochre pigments. Unilit through coloured renders are produced using natural earth ochre pigments, which are inert, UV resistant and do not leach out or fade.
The range of mortars are very vapour permeable and are completely compatible with the Unilit system as finishing layers. Designed for applications where resistance against high impact and atmospheric influences are required. The optimum vapour permeability allows the moisture present in the wall to rapidly migrate from the structure.
When used as a finishing mortar to new Unilit 20, 25 30, 35, 35M or Telling Fen X Preblend or Unilit Fen X renders, specify as the final coat to the base render/undercoat (specify in the relevant Unilit clause).
Colour: 12 standard colours.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.5 N/mm2.
Compressive strength: 5 N/mm2 after 60 days; 6 N/mm2 after 90 days.
Modulus of elasticity: 6130 N/mm2.
Coefficient of thermal conductivity: 0.30 W/m °K.
Vapour diffusion resistance: µ= 10.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 0.7 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.
Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 400.
Thickness: 3-4 mm overall.
Finish: Seek advice from Telling. Sponged or floated to the desired finish
Application: Mix Unilit 400 with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically to a dry or damp substrate in 2 layers of 2mm (wet on wet).
If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours. Do not use mortar below ground level unless applied over Unilit 30.

Unilit 300.
A medium textured through coloured traditional, dry, premixed mineral finishing mortar based on hydraulic, naturally pure and selected lime and available in 12 standard colours and colours achievable using natural earth ochre pigments. Unilit through coloured renders are produced using natural earth ochre pigments, which are inert, UV resistant and do not leach out or fade. Where applied as a finishing coat Unilit 30 is applied by steel trowel a minimum 4 – 6mm thickness and can be sponged or wood floated to the desired open textured finish.
Unilit 300 mortar is very vapour permeable and completely compatible with the Unilit system as a finishing layer. Designed for applications where resistance against high impact and atmospheric influences are required. The optimum vapour permeability allows the moisture present in the wall to rapidly migrate from the structure.
When used as a finishing mortar to new Unilit 20, 25 30, 35, 35M or Telling Fen X Preblend or Unilit Fen X renders, specify as the final coat to the base render/undercoat (specify in the relevant Unilit clause).
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 10 N/mm2 after 60 days; 12 N/mm2 after 90 days.
Modulus of elasticity: 6130 N/mm2.
Coefficient of thermal conductivity: 0.30 W/m °K.
Vapour diffusion resistance: µ= 10.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 1.7 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 300.
Thickness: 4-6 mm overall.
Finish: Seek advice from Telling. Sponged or floated to the desired finish.
Application: Mix the mortar with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically to a dry or damp substrate in a 4 – 6mm thick layer by trowel. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours. Do not use mortar below ground level unless applied over Unilit 30.

Unilit 200.
A coarse textured through coloured traditional, dry, premixed mineral finishing mortar based on hydraulic, naturally pure and selected lime and available in 12 standard colours and colours achievable using natural earth ochre pigments. Unilit through coloured renders are produced using natural earth ochre pigments, which are inert, UV resistant and do not leach out or fade. Where applied as a finishing coat Unilit 30 is applied by steel trowel a minimum 4 – 6mm thickness and can be sponged or wood floated to the desired coarse open textured finish.
Unilit 200 mortar is very vapour permeable and completely compatible with the Unilit system as finishing layers. Designed for applications where resistance against high impact and atmospheric influences are required. The optimum vapour permeability allows the moisture present in the wall to rapidly migrate from the structure.
When used as a finishing mortar to new Unilit 20, 25 30, 35, 35M or Telling Fen X Preblend or Unilit Fen X renders, specify as the final coat to the base render/undercoat (specify in the relevant Unilit clause).
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 10 N/mm2 after 60 days; 12 N/mm2 after 90 days.
Modulus of elasticity: 6130 N/mm2.
Coefficient of thermal conductivity: 0.30 W/m °K.
Vapour diffusion resistance: µ= 10.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 4 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 200.
Thickness: 4 – 6mm overall.
Finish: Seek advice from Telling. Sponged or floated to the desired finish
Application: Mix the mortar with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically to a dry or damp substrate in a 4 – 6mm thick layer by trowel. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours. Do not use mortar below ground level unless applied over Unilit 30.

Unilit 30. Finish – Coarse weatherproof finishing layer. (see Unilit 30 clause for undercoat application)
A dry, premixed mineral stabilising mortar based on hydraulic, naturally pure and selected lime. Designed particularly for situations where rising damp or capillary action is prevalent, the mortar is characterised by a high plasticity, slow but strong bonding and a low salt content. Unilit 30 is impermeable to water but very vapour permeable and can be used as an undercoat or as a coarse finishing coat as part of a Unilit mortar system. The mortar can be applied to damp walls of buildings and cellars.
Where high levels of damp and salts are prevalent, e.g. basement walls the minimum total undercoat layer thickness of Unilit 30 must be 20 mm, for the minimum waterproofing performance the minimum total undercoat layer thickness must be 12 to 15mm.
Where applied as a finishing coat Unilit 30 is applied by steel trowel a minimum 4 – 6mm thickness and can be sponged or wood floated to the desired coarse, open textured, water repellent finish.
A colour finish can then be applied with a lime paint – specify in section M60 – Lime wash and lime paint finishes are available from Telling Lime Products and can be applied within 2 or 3 days after the application of Unilit 30.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 7 N/mm2.
Modulus of elasticity: 6130 N/mm2.
Vapour diffusion resistance: µ= 10.
Coefficient of thermal conductivity: 0.65 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 35M.
Thickness: 4 – 6mm overall.
Finish: Seek advice from Telling. Sponged or floated to the desired finish.
Application: Mix the mortar with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically to a dry or damp substrate in a 4 – 6mm thick layer by trowel. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.

Unilit 35M Finish.
A traditional, dry, premixed mineral and finishing mortar based on hydraulic, naturally pure and selected lime, characterised by a high plasticity, slow but strong bonding and a low salt content.
Unilit 35M is very vapour permeable and is completely compatible with the Unilit system as an undercoat or as a finishing layer, for internal and external use providing that excessive damp or salt problems are not prevalent. Recommended for the renovation of old buildings.
Where applied as a finishing coat Unilit 35M is applied by steel trowel a minimum 4 – 6mm thickness and can be sponged or wood floated to the desired open textured finish. The product must be decorated with a protective lime based coating to make the system weatherproof.
A colour finish can be applied with a lime paint – specify in section M60 – Lime wash and lime paint finishes are available from Telling Lime Products. Alternatively a through coloured finish – Unilit 200/300/400 or a Telling Cori polished finish can be applied.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 5.5 N/mm2.
Modulus of elasticity: 5500 N/mm2.
Vapour diffusion resistance: µ= 13.7.
Coefficient of thermal conductivity: 0.65 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 1.5 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 30.
Thickness: 4 – 6 mm overall.
Finish: Seek advice from Telling. Sponged or floated to the desired finish.
Application: Mix the mortar with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically to a dry or damp substrate in a 4 – 6mm thick layer by trowel. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.

Unilit 35 Finish.
A traditional, dry, premixed mineral undercoat and finishing mortar based on hydraulic, naturally pure and selected lime, characterised by a high plasticity, slow but strong bonding and a low salt content.
Unilit 35 is very vapour permeable and is completely compatible with the Unilit system as an undercoat or as a finishing layer, for internal and external use providing that excessive damp or salt problems are not prevalent. Recommended for the renovation of old buildings.
Where applied as a finishing coat Unilit 35 is applied by steel trowel a minimum 4 – 6mm thickness and can be sponged or wood floated to the desired coarse, open textured finish. The product must be decorated with a protective lime based coating to make the system weatherproof.
The product must be decorated with a protective lime based coating to make the system weatherproof.
A colour finish can be applied with a lime paint – specify in section M60 – Lime wash and lime paint finishes are available from Telling Lime Products. Alternatively a through coloured finish – Unilit 200/300/400 or a Telling Cori polished finish can be applied.
Colour: Beige.
Packaging: 30 kg bags, in powder form.
Density: 1600 kg/m3.
Tensile strength: 0.6 N/mm2.
Compressive strength: 7 N/mm2.
Modulus of elasticity: 6130 N/mm2.
Vapour diffusion resistance: µ= 12.
Coefficient of thermal conductivity: 0.65 W/m °K.
pH: > 10.5.
Fire classification: Non-flammable (M.O.)
Maximum granular size: 3 mm.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Hydraulic lime mortars are specialist products and it is recommended that Telling Lime Products are consulted early in the design process.

Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 35.
Thickness: 4 – 6 mm overall.
Finish: Seek advice from Telling. Sponged or floated to the desired finish.
Application: Mix the mortar with clean water – 4.5 to 5.25 litres of water to 30 kg of powder depending on the temperature and substrate. Mix manually or mechanically for 3 to 5 minutes.
Apply manually or mechanically to a dry or damp substrate in a 4 – 6mm thick layer by trowel. If the substrate is too dry, dampen down the surface prior to overcoating. Do not apply in temperatures below 5°C or above 40°C. The mortar remains workable for 2 hours and dries in 24-48 hours. Protect from frost for 48 to 72 hours.