Grout is not flexible, but caulk is – allowing it to “give” with any possible structural movement that occurs between surfaces. Joints between surfaces – like wall and floor – or anywhere that settling might occur, should be caulked. Use caulk between wall tile and tub or shower, between countertop and backsplash, and in corners where two walls come together. Grout is also a porous surface, which allows moisture to penetrate. Caulk is effective for creating a waterproof seal in areas such as around plumbing valves, sinks and faucets.
Caulk is easy to apply, by just following manufacturer’s recommendations. You’ll need a caulking gun, a damp rag or a caulk smoothing tool. Load the caulk tube into the gun and use a sharp blade to make an angled cut across the tip of the tube, then poke a hole into the tube with a nail or the metal tool that comes on some caulking guns. Move your caulking gun smoothly across the seam and then smooth the joint with a damp rag, moistened fingertip or caulk smoothing tool. Be sure to note whether your caulking gun stops dispensing when you release the trigger, some need to be stopped manually or caulk will keep flowing!
Allow your caulk to dry thoroughly per manufacturer’s instructions, and your tiled surface will be ready to use and sealed to perfection.
