How to apply sealants in wet areas

Applying fresh sealant in your bathroom helps keep mould and water damage at bay, so here’s a few tips on how to apply sealant. Half the secret is in the application and the other is the sealant, so make sure you pick a quality waterproof quality sealant.

A tradesman is only as good as his tools. So for best results when sealing, make sure you have on hand a quality sealant, applicator gun, masking tape, damp cloth, spray bottle, ice cream stick and scissors.

Materials

  • Sealant
  • Applicator gun
  • Masking tape
  • Damp cloth
  • Spray bottle
  • Ice cream stick
  • Scissors
  • Pencil

Step 1: Use Applicator Gun

Step 1: Use Applicator Gun

To prepare, screw the nozzle onto the end of the tube of sealant and cut the sealant nozzle at a 45-degree angle. Insert it into the applicator gun.

Step 2: Wipe Surface

Step 2: Wipe Surface

Wipe the surface that you will be sealing with a damp cloth to remove any dust and debris.

If you are not confident that you will have a clean edge, apply masking tape to either side of the area where silicone is being applied, leaving a 2-3mm gap. This will help stop the sealant bleeding.

Step 3: Apply the Sealant

Step 3: Apply the Sealant

With the sealant gun in hand, place the nozzle in the area you want to seal and gently pull the trigger, moving the applicator to ensure the bead is the same thickness throughout its length.

Step 4: Smooth the Joints

Step 4: Smooth the Joints

Use a spray bottle with water and soap, spray the sealant and run an ice cream stick along the joint to make it smooth.