@@YG-kk4ey porcelain is super dense but the Stampshield also has Silane in it that will link to the minerals in the porcelain so you should be perfectly fine
I'm interested in the non-slip additive, however does it look grainy or alter the appearance of the finished sealed surface? Is there a video demo of the non-slip additive you'd recommend?
Debra Sherk, PhD, LMFT no it doesn’t . We have a very fine polypropylene non slip that doesn’t show like conventional anti slip. We like it because you can still wipe/ mop it without it pulling at the sponge/ cloth. The slippery ness of the surface depends on the surface, if it is smooth and slick before it is sealed it will be slippery afterward
Debra Sherk, PhD, LMFT we sell it or you can get it from the mfg. out of New Jersey called micro-powders the name of the product is called propyltex 100s . I think the smallest amount you can get from micro powders is 11# so if you don’t need that much you can call our office at 607-775-1948 and order it since I don’t think it is on our website.