I have been making some Santa sleds as Christmas decorations. They are about 18" long , have 66 parts and are painted 6-8 different colors. My brushes got clogged up with acrylic paint so I decided to clean them up with a cleaner I had. it was labeled "non toxic" and "biodegradable" so I put some in a plastic cup (big mistake) and put my brushes in the cup and left my workshop for a few hours. When I came back in a few hours the cup had disintegrated ! and the liquid cleaner was all over the top of my table saw (where I had stupidly left the cup)