Re: Caulk Where Backsplash Meets Wall?
Just stick with a name brand such as DAP and you'll be fine. You want a tub/tile or kitchen/bath caulk. The tube will probably also say "adhesive caulk" on it, don't worry about that.
Originally Posted by suntower
It is not uncommon to have some caulk shrinkage after application, you can always come back in after it cures and apply another bead over the top. You can only do this with latex, as was said before, nothing will stick to silicone, not even more silicone.
What I would do is apply as small a bead as possible (in all situations ). If you notice some cracking or shrinkage, apply another thin bead as necessary. What this will do is, bead #1 will fill the gap, bead #2 will fill any small crack or minor shrinkage that occurred with the first bead.
Tip #2 is to have a soggy wet rag, really wet, but not to the point of dripping. Lay the rag out flat near where you're working, lay in your bead, then wet your finger really good on the rag and lay off 2" - 6" of the bead at a time, wiping your finger between strokes. Once you've done this the entire length of the joint, go back to the beginning with a clean wet finger and do a single full stroke along the length of the joint. The first pass presses the caulk into the joint and removes the excess, the second pass gives you a perfect finish.
Tip #3, always lift your finger from the bead while in motion, this will prevent you from pulling the caulking out of the joint before it's fully pressed into place, it also leaves a smoother stop/start point as you work along the joint. If you're working from two inside corners (a corner on each end of the joint ), then do half the joint from one direction and half the joint in the opposite direction, starting from each corner.
One last thing, caulking is a maintenance item that should be checked regularly, at least yearly, and repaired as needed, regardless of it being latex, silicone, beutyl, etc. The more movement there is in the joint, the more likely that it is going to crack or completely fail. Movement comes from thermal expansion/contraction of the surface the caulk is applied to.
Last edited by A. Spruce; 12-08-2013 at 02:58 AM.
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