Caulk creates a watertight seal that protects your drywall and cabinets wherever water is present. It seals kitchen sinks, tubs, windows, doors, and tiles, and fills in cracks for a smooth finish.

Caulk doesn't cure until at least 24 to 48 hours after applying it, although some types take days to cure completely. Exposure to oxygen is what sparks the curing process. Once the caulk is cured ...

When buying a caulk gun, think about what it will be used for and how often it will be used. Step 3: Choose a smooth plunger over a ratcheting plunger.

This caulk has excellent adhesion and superior flexibility. It won't dry out or crack but will bend, stretch, and twist to handle all the movement your house can dish out.