Cornerstone is our brand new range of dry, ready mixed natural hydraulic lime mortars, renders and related products.
A guide by Cornish Lime, using NHL or Lime Putty
Animal hair has traditionally been used as reinforcement in lime renders as a means of improving tensile strength and to reduce shrinkage cracking. Introduced into the mix by teasing the hair into the mix prior to the mortars use.
After a Lime Render has been placed it must be allowed time to to cure/fully hydrate before it acquires strength and hardness.Curing is the process of keeping the mortar/render under a specific environmental condition until hydration is relatively complete.
Lime putty is not used on its own it is the binder where the putty is mixed with a suitable sand in the correct ratio to make a lime mortar, lime render or a lime plaster to name its main functions.
The use of building limes have increased considerably in recent years and for very good reason; these relatively simple materials are essential to the structural welfare of historic buildings, a fact that has not escaped my attention whilst working with these materials over the last seventeen years or so.
Hempsulate is a product manufactured by Cornish Lime, made from hemp, lime and recycled minerals. Hempsulate is a low carbon alternative to gypsum based plasters and renders. It offers numerous benefits to a building and its users and has particularly good thermal qualities.
Technical advice note for the application of Lime Mortars.
Prompt is a rapid set cement with a wide range of controled setting times
Bag rubbing is a technique where the pointing of masonry is conducted in a manner closer to rendering, that does not (have to) extinguish the ‘character’ of the wall.
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