Acetone is the most effective solvent for cleaning liquid uncured resin from brushes and tools.
It is not to be used for hand cleaning as it will extract natural oils from the skin.
Acetone has many uses:
Thinning Polyester Resins
Store in a cool well ventilated area.
Keep container tightly closed.
HIGHLY FLAMMABLE -Keep away from any sources of ignition, or any naked flames.