A: Epsom salt will only damage your acrylic tub if left on the surface for extended periods. To make sure that Epsom salt does not damage your Acrylic tub, clean the tub with soap and water to make sure that no residue is left on the tub’s acrylic surface.Click to see full answer. Just so, can I use Epsom salts in an acrylic tub?Epsom salts are safe to use. You should also clean the tub with soap and water after using the salts to ensure no residue is left on the acrylic surface.Similarly, how do you restore an acrylic bathtub? How to Restore the Finish to an Acrylic Tub & Shower Mix warm water and a mild dish detergent such as Dawn in the tub or a nearby bowl or bucket. Inspect the acrylic surfaces for any scratches or dents. Sand the surface of the tub if you find deep damage to the tub, such as deep scratches or burn marks. Purchase polisher or wax from a hardware or automotive store. Subsequently, one may also ask, is Epsom salt bad for bathtub? Epsom salt bath side effects When used as a soak, Epsom salt is generally considered safe. If you’ve never had an Epsom salt bath, consider testing a patch of skin with magnesium sulfate and water first.Is Windex safe for acrylic tubs?Windex – Believe it or not, the beloved product that makes windows shine is also a safe alternative for cleaning acrylic tubs and showers.