Marble Trim Seal Or Caulk First

Unsanded caulk has a smooth appearance and texture.

Marble trim seal or caulk first.

Because marble is a natural stone and will absorb color you need to seal them before you grout to prevent the grout from discoloring the tile. Caulk comparison dap lexel ge sashco kwik seal loctite ge ii red devil ge supreme dow corning quantity oz 10 10 5 00 2 80 10 50 5 50 5 50 10 10 10 10 10 10 10. You ll find you have to gently. Caulk can be either sanded or unsanded.

Then i used a grouting sponge to wipe off any excess. At the first instance the new caulk will stick to the moldy caulk but after drying out newly applied portion will come out of the surface quite easily. Use sanded caulk any time you use sanded grout and in joints 1 8 inch or wider. No you shouldn t caulk over the mold.

Doing so will give the mold opportunity to extend further and break the bonding of the older from new caulk. Sanded caulk has particles in it that help it adhere to wet surfaces and expand in larger gaps without cracking. Hold the caulk gun at a 45 degree angle and do a few practice runs on a piece of paper first to get a feel for how much pressure to apply. I used this sealer and just put it in a spray bottle and sprayed three coats on the ungrouted tile.