How to cover exterior paint to make it safe to use inside?
How can I cover up a surface previously painted with exterior paint so it is safe to use inside the home?
Simply paint over the exterior paint with interior paint. Make sure to use the same type of paint. Acrylic over acrylic or oil base over oil base for the best results. If you want a better seal use a good primer, a good acrylic primer should do fine in most cases.