Use sanded caulk any time you use sanded grout and in joints 1 8 inch or wider.
Marble trim seal or caulk first.
Doing so will give the mold opportunity to extend further and break the bonding of the older from new caulk.
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.
No you shouldn t caulk over the mold.
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.
It has a grainy texture and appearance.
You ll find you have to gently.
I used this sealer and just put it in a spray bottle and sprayed three coats on the ungrouted tile.
Unsanded caulk has a smooth appearance and texture.
Magic tub and wall peel and caulk strip create a tight seal between the bathtub and wall to keep moisture out 7 8 inch by 11 feet white 3 0 out of 5 stars 345 caulk tape self adhesive sealing caulk strip waterproof repair strip for bathtub kitchen sink basin edge shower toilet and wall mildew sealing tape 1 5inch width x 10 5feet length.
Caulk can be either sanded or unsanded.
Starting with the first question here.
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.