How can I tell if something was painted with an oil-based paint?

Oil-based paint usually feels smoother to the touch, but if you can't tell for sure, here's a quick, easy way to do a test. Pour a bit of an acetone-based solvent like nail polish remover on a rag or paper towel and rub it on the surface.  If nothing rubs off it's oil, if paint rubs off on your rag, it's latex.

Check your state and local codes before starting any project. Follow all safety precautions. Every effort has been made to ensure the accuracy and safety of this information. Neither Westlake nor any contributor can be held responsible for damages or injuries resulting from the use of the information in this document.