Primer is used as a pre treatment for very absorbent surfaces.

Allback chalk powder is made from ground pure calcium carbonate. It can be used in many different ways:

1. Added to the Allback Linseed Oil Putty to stiffen putty if needed.

2. Mixed with Allback Shellac Primer to create a strong, sandable filler for small cracks or holes. For interior use only.

3. Mixed with Allback Linus Interior paint to thicken it for stencilling and other effects.

Available in a 1 kg pot.