How to Seal a Sink
Getting a proper seal around your sink prevents water penetration. Here’s the best way to ensure a complete seal around your sink area to make it easier to clean and less prone to water damage and discolouration.
Tools for the Job:
1. High grade neutral silicone – such as Selleys Wet Area Silicone
2. Silicone gun – light speed caulking guns allow for accuracy and control
3. Utility knife – a small, sharp blade makes cleaning edges safe and easy
4. A rag and some mineral turps – have these on hand for a quick clean up
5 Steps to a Sealed sink:
1. Prepare the Area
Clean your workspace so that it’s free from dust and debris. Contaminants will prevent a decent bond, so wipe over the area with some mineral turps.
2. Load your silicon gun
Cut the tip of the canister at a 45 degree angle, with your utility knife. The hole needs to be fairly small for maximum control, so make the incision relatively close to the end. If your silicone tube has a seal, pop it with a nail, then slide it into your gun.
3. Test the sealing
Grab a test piece and get an idea of the speed you’ll need to work at. Your sealant should flow evenly without dripping or squirting.
4. Apply the seal
Hold the sealant tip at a 45 degree angle and apply the silicone evenly and with a steady hand. When you reach the end of the area you want to seal, release your trigger to shut off the flow of silicone.
5. Finish with tooling
Pop on a latex glove and dip your finger in some detergent. Starting from one edge, gently pull your finger around the seal until you’re half way around. Then do the same from the other end. Smooth the middle over so there’s no lump.
Now just wait for the silicone to cure.
If you haven’t used your whole canister, you can re-seal it for another job by popping a small pencil or wooden rod in the end and putting tape over it.