Best answer is to clean it off immediately while it is still wet.
Once it has dried, it depends on the material the bathtub is composed of. If it's porcelain, use some lacquer thinner to melt the primer, then clean off the residue and polish. If it is fiberglass or plastic, then any solvent strong enough to remove the cured primer will also damage the surface of the bathtub. Use a razor blade to scrape off the primer, being careful to not damage the surface.
Chat with our AI personalities
Yes, you can use Kilz over drywall. It is an undercoat, or primer.
Kilz is a heavily pigmented primer and does not take tinting well.
How do I get rid of Kilz from blue stone patio
If you use a quality primer like Kilz or Bullseye, you should be OK.
Kilz is an economical consumer grade stain killing primer. It is designed to be sold in home centers at a low price. For harder to cover stains, a more expensive, higher quality stain kill primer should be used.