Telling Lime Limited Booths Hall Booths Park Chelford Road Knutsford Cheshire WA16 8GS. Tel: 01565 756110 Email: info@tellinglime.co.uk Web: www.tellinglime.com

TELLING LIME
UNILIT NATURAL HYDRAULIC LIME PLASTERS AND RENDERS
CORIDECOR LIME PUTTY PLASTER AND RENDER POLISHED FINISHES

PLASTERED/ RENDERED/ ROUGHCAST COATINGS

Telling Lime - Natural Hydraulic Lime
Telling Lime manufacture and are distributors for a range of natural lime mortar products for various applications, together with stabilisation and consolidation grouts, mesh reinforcement and lime paints and finishes. The natural hydraulic lime products replicate the strength, porosity, adhesion, vapour permeability and flexibility of historic mortars.

Unilit mortars conform to European Standard ENV 459-1 for natural hydraulic lime mortars. The products are manufactured using a modern day manufacturing process, are guaranteed against failure for 10 years and are warranted against defect under a professional indemnity insurance. Telling also manufacture a range of bonding agents for use with Unilit mortars. 

Unilit 25 - Lightweight mortar.

Unilit 25.
A dry, premixed lightweight mortar based on expanded volcanic mineral deposits of varying granular sizes and natural hydraulic lime which has excellent vapour permeability qualities to promote the migration of moisture and humidity from with the structure. Designed particularly for application onto thermal blockwork, the mortar controls the level of moisture retained within the structure and has superior thermal, mechanical and adhesive properties.
Unilit 25 can be used in both new construction and renovation, both internally and externally, and will prevent the occurrence of mortar joint lines appearing in a render finish.
A colour finish can be applied with a lime paint - Corical - Lime wash and lime paint finishes are available from Telling Lime. Alternatively a through coloured finish - Unilit 65f/65M/65N or a Telling Cori polished finish can be applied.
Basements and other areas susceptible to rising damp must be treated with Unilit 30 mortar in place of or prior to application of Unilit 20.
The use of Telling stainless steel brick mesh is recommended where there is a likelihood of structural movement. This mesh is coated with nodules of fired clay (brick) which produces a mineral bond between the  render and the mesh to ensure fusion of lime to the natural mineral coating on the mesh.
Colour:                                                     Beige.
Packaging:                                                30 kg bags, in powder form.
Density:                                                    1200 kg/m3.
Tensile strength:                                        0.6 N/mm2.
Compressive strength:                               4.5 N/mm2.
Vapour diffusion resistance:                       µ= 10.
Coefficient of thermal conductivity:            0.25 W/m °K.
pH:                                                           > 10.5.
Fire classification:                                      Non-flammable (M.O.)

Waterproofing and Stabilising layer - Unilit 30 waterproofing and stabilising layer.
Apply Unilit 30 as the undercoat mortar for plastering and rendering of internal and external walls below ground level, up to approx. 1 meter above ground level and other areas where damp and/or salts are present or expected. 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 layer thickness of Unilit 30 must be 20 mm, for the minimum waterproofing performance the minimum total layer thickness must be 12 to 15mm.
Unilit 30 and Unilit 25 are normally applied in adjacent areas to the same thickness with a finishing coat applied over both to give a uniform finish. Unilit 30 can also be applied as a pre treatment prior to applying Unilit 25 or as the first 15 - 20mm render thickness in place of Unilit 25 where greater thickness is required. 
If a finish or following layers are applied to Unilit 30 after 1 week (or where Unilit 30 has fully dried), a bonding layer of Unilit 15/P1 or 15/ P2 is required.
A colour finish can be applied with a lime paint - Corical - Lime wash and lime paint finishes are available from Telling Lime. Alternatively a through coloured finish - Unilit 65f/65M/65N or a Telling Cori polished finish can be applied.
Consult Telling technical service department for advice on the suitability of the substrate.
Consult with Unilit technical literature for details. Natural hydraulic lime mortars are specialist products and it is recommended that Telling Lime 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.
Bonding agent: Unilit 10 / Unilit 15/P2.
Manufacturer: Telling Lime Limited, Booths Hall, Booths Park, Chelford Road, Knutsford, Cheshire, WA16 8GS. Tel: 01565 756110 Email: info@tellinglime.co.uk  Web: www.tellinglime.com
Waterproofing and stabilising undercoat layer (if required): Unilit 30. (for basements and other places susceptible to rising damp, or high levels of damp or salts). see Unilit 30 clause.
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: 12 - 15mm for minimum waterproof performance, 20 mm for maximum waterproof performance e.g. for excessively damp and salt laden areas, basement walls and areas below ground level.
Undercoats: Premixed natural hydraulic lime mortar.
Product reference: Unilit 25.
Fibre reinforcement: Seek advice from Telling. Not Required
Thickness (excluding dubbing out): 15-20 mm.
Application: Mix Unilit 25 with clean water - 6 to 7 litres of water to 30 kg of powder depending on the temperature and substrate. Mix mechanically either by a concrete mixer or a paddle whisk for 3 to 5 minutes.
Apply manually or mechanically to a dry or wet substrate. If the substrate is too dry, or extreme drying conditions exist, 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. Do not use mortar below ground level.
Final coat: Premixed natural hydraulic lime finishing mortar.
Product reference: Unilit 40. / Unilit 45. / Unilit 65
Thickness: 3-4 mm (fine finish) 3 - 5mm (medium finish) 4 - 6mm (coarse finish) overall.
Finish: Seek advice from Telling. depending on product and desired finish- trowelled, wood floated, sponged.
Accessories: Telling Brick Mesh Stainless steel mesh reinforcement