Eco-friendly brush cleaner: suitable for cleaning acrylic paint residues from brushes and other paint-soiled surfaces. It is biodegradable and non-flammable. It dissolves acrylic paint in a safe and gentle way and does not stain or harm brush hairs. It can be diluted with water, and its effectiveness is increased with gentle heating.  To clean brushes simply dip the heads into the brush cleaner (a brush washer is very beneficial for this purpose) for anything from a few minutes to an hour depending on the hardness of the residues. Remove dissolved paint with a cloth.