Chalkhill Lime Plaster is produced from our own unique putty and range of aggregates we have researched and developed over the past 8 years.

	Suitbility Base Coat Render / Plaster Internal or External Onto Lath, Stone or Brickwork Walls & Ceilings

Certain applications may require a "key" of some description. For example, lath is used to create a mechanical key, when the render is pressed onto the lath it is squeezed through the gaps and actually "hooks" over the top of each strip of wood. The plaster literally hangs from the lath. In external applications various meshes such as Expomet are used to create a mechanical key.

If you're applying to exsisting lime based plaster or render the material will adhere to the base material or "substrate".

When applying to brick or stonework, the rough surface should be enough of a mechanical key for the new render to adhere to. It's important that you DO NOT prime the surface you are rendering on to with any PVA or similar types of primer. Not only will this not work, it will block the pores of the material underneath and vastly reduce the breathability of the wall you are rendering. This can cause damp problems in the future.