Paint coming off as a dusty white powder on your hands?
What is it?
A fine white powder forms on the surface of the finish, usually because of weathering. This can cause the paint to look faded. A little chalking is normal, however heavy chalking can cause the film to wear away.
Possible Causes:
Applying paint over greasy or very smooth surfaces.
Applying over loose dust or rust.
Applying over a glossy coat without first sanding it.
Using a low quality, high-pigment finish.
Using indoor finishes on exterior surfaces.
Solutions:
Always prepare surface correctly before painting.
Scrub with a stiff brush or wire brush to remove the chalk formation and rinse well.
Once it is dry, make sure that all chalk residue has been removed.
If the chalking is still present and obvious, use an oil based or acrylic latex primer or sealer. Repaint with a high quality exterior coating.
