Coarse Lime Putty Mortar and Basecoat Render
Verified by manufacturer 3 days ago
CLM28
CLM28
A ready mixed multipurpose non-hydraulic lime putty mortar for pointing and general building work or as a basecoat render with a coarse texture and refined buff coloured finish.
Application
Suitable for internal or external use, where the binder strength is appropriate for the host background or surface.
Coarse Putty Mortar & Basecoat Render is a suitable for general building and pointing work as well as rendering applications, including coarse render coats, dubbing out, scat coats, scratch coats and float coats. For areas which could use additional reinforcement or shrinkage control, we recommend our Fibered Coarse Lime Putty Mortar.
Well-suited for stonework or brickwork applications with various joint sizes 8mm or above looking for a traditional finish.
A 20kg tub yields approximately 10 litres of wet lime mortar or render. For rendering, this covers roughly 1m² at a 12.5mm thickness. For brickwork pointing, this will fill roughly 1.2m², for stonework pointing 1m² at 25mm depth or bedding 0.5m².
Consumption rates will change based on the condition of the background and suction. The width and depth of the joint will influence this estimation. On-site trials are advised for the best yield indication for your specific project.
As natural products, our natural sands may exhibit variations in colour, texture, and shape. While these variations are minimal, when colour consistency is crucial, we strongly advise each elevation is completed using material from the same batch.
Supplied in 20kg buckets and palletised for ease of transport, storage, and handling. FIBC tonne bags are also available.
Description
Cornerstone Coarse Putty Mortar & Basecoat Render is a wet ready mixed multipurpose non-hydraulic lime putty mortar for pointing and general building work or as a coarse basecoat. Available in the colour buff.
Engineered with precision utilising non-hydraulic mature lime putty, natural sands to create a high-performance multipurpose mortar and render with a coarse traditional finish. Made with our own premium lime putty, matured in our pits on-site for a minimum of 4 months. As a fatty lime with a high free lime content, our non-hydraulic lime putty range is more breathable, porous and flexible than our Natural Hydraulic Lime ranges.
Well-suited for stonework applications looking for a traditional coarse buff finish or rendering applications looking for a highly breathable basecoat.
Features and benefits:
- One of our most popular and versatile mortars
- Multipurpose use for building, pointing or rendering
- Made with our own four months matured lime putty
- No pigments to prevent colour fading
- High vapour permeability for improved moisture management
- Straightforward to use and knock up
- A fatty and workable mortar for those behind the trowel
General information
Color | Beige |
Finish | Coarse Guidance for specification option: 5 mm sand. |
Material | Lime Sand |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Uniclass | |
CAWS | Z21/380 Ready to use nonhydraulic lime:sand mortars Z21/310 Lime:sand mortar mixes M20/57 Lime:sand M20/330 Proprietary lime:sand M20/310 Lime:sand Z21/380 Ready to use nonhydraulic lime:sand mortars Z21/310 Lime:sand mortar mixes |
Specification data - Lime renders
Components | Air lime. |
Mix | 1:3 (lime:sand). |
Lime notification | CL 90.Guidance for specification option: Lime putty:
|
Sand | Course. |
Fibre reinforcement | None. |
Colour | Natural. |
Aggregate | 5 mm down washed yellow flint sand. |
Reaction to fire classification | Class A1. |
Sustainability data
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Lime Sand |
Literature
Coarse Putty Mortar - Product Data Sheet
Cornerstone Lime Putty Mortar - Safety Data Sheet