Most stains will be fine because freezing doesn’t affect color. Some of the dyes will coagulate. The best advice don’t let water finishes freeze. Once frozen, most water based finishes such as General Finishes High Performance Water Base Topcoat are no longer useable.Click to see full answer. Beside this, does paint go bad if frozen?Check the paint after thawing. Freezing does ruin latex paint, but it can survive a few freeze/thaw cycles. Allow the paint to slowly warm up to room temperature, then stir it well. If the paint color and consistency appear normal, then it should be all right to use.Also Know, how do you store leftover wood stain? Always store the stain in the airtight container it came in. Once you are finished with the stain and preparing it for storage combine all the left over stain into the least amount of containers as possible. Be sure the lid is tightly sealed so the solvents do not evaporate. In this manner, can stain go bad? Oil-based stain can be kept for 1 year if the cans have been opened, but unopened cans will last 2 – 3 yrs. Water-based stain will last 1 year, if opened, and 2 years, if unopened. Oil-based varnishes will be good for 1 year, opened or unopened.What happens if polyurethane freezes? Re: Urethane Oil Base/freezing Temps Your varnish should be fine. Unless the oil freezes, which is highly unlikely at those temps, the chemical structure of the blend should not be affected by crystallization or other means.