To caulk a shower stall, remove any old caulk from the seams, clean the seams with water and soap, allow them to dry, use a caulking gun to seal the seams with caulk, and then smooth the caulk with your finger. Use a silicone-based caulk to accomplish this task.
- Prepare the area
Pull out any old caulk with pliers. Cut and scrape it away with a knife. Wash the seams with soap and water to remove dirt and debris, rinse them with clean water, and wipe them with an alcohol-soaked cloth to eliminate the caulk residue. If needed, repeat the process to completely eliminate any residue, and let the seams dry.
- Apply the caulk
Once the area is completely dry, insert the cartridge into caulking gun, cut the nozzle to a desired size, and pierce the inner seal. Place the nozzle over the furthest point of the seam, hold the gun at a 45-degree angle, and pull it towards you while squeezing the gun with even, consistent pressure to control the rate at which the caulk leaves the tube. Repeat the process to fill any remaining gaps.
- Smooth the caulk
Before the caulk dries up, smooth it by running your finger along the length of the bead.