The best method for stripping sealers is often debated. The best method to use really depends on various factors. Before you decide which method to use to remove the sealer it is important to know what kind of sealer you are stripping. Not all sealers are alike, so this makes a difference when choosing how to remove it. Thicker sealers such as epoxies and polyurethanes perform better, but will take more time to strip than thinner sealers, such as acrylics, take.