Pavan Italian Plastering Tools It can of course be sealed with our ProtectGuard Stucco Italian Plaster Sealer to be made water & oil repellent and provides a beautiful and stunning alternative to tiles.
How to Waterproof Plaster of Paris Coat the plaster with a waterproofing agent, such as Waterblok or marine resin, which penetrates through the surface pores. Let the agent dry completely. Repeat as needed to completely seal the plaster object, letting each layer dry completely. When dried, you will have a plain waterproof plaster object. 5 Apply your paint colors as desired, over the dried waterproofing agent. Let dry 6 Spray with a clear sealer or shellac to protect the paint job
Homeowner says, "surface on the shower walls is called SkimStone. We'd never seen it used on a shower before (just countertops), but it's really easy to use. It goes on like joint compound and looks like polished concrete. I did two coats of SkimStone and then 10 coats of a concrete water sealer. Very inexpensive and easy!"