Can a quality latex paint be hurt if it has been frozen and thawed?
Yes, latex paint can be hurt if it is frozen. Problems that can occur are reduced gloss, separation of ingredients, formation of "grit" or lumps. Often, though, a paint may survive one or a few freeze-thaw cycles. If a paint is frozen, it should be thawed slowly; then thoroughly stir the paint. If it appears to be smooth and of normal consistency and of the proper color, it probably is OK to use.