I have a metal kitchen sink that's slowly coming undone from my Corian countertop. The previous owner did a shoddy job with the installation and just used silicone, with no proper mounting hardware. I've fashioned a temporary support to keep it in place for now, but I'm unsure about the best way to fix it. I've heard I need a specific Corian adhesive and maybe some mounting brackets, but do I also need to worry about moisture damage or replacing any wood underneath the sink? The gap has started getting worse recently, and I'm hoping to get some good advice.
4 Answers
You’ll definitely need a specific two-part adhesive for Corian, which requires special application gear and surface prep. Coupled with that, once it’s set, you’ll need to trim excess adhesive with a router, not a knife. If you want it done right, consulting a Corian installer could save you some hassle. If you’re going DIY, just use silicone and brackets, but steer clear of drilling into the Corian.
As long as you're not seeing tons of water under the sink, it should be alright. I had a similar situation and went a year with no sealant, and everything was fine. Just grab a bracket, add some caulk, and lift the sink back up. You might want to remove any old caulk first so everything adheres better.
For a fix, I'd suggest using a style of bracket like the one I found on Amazon. Just scrape out the old silicone, apply new silicone, and use the bracket to pull the sink tight against the countertop while removing any excess. It's pretty straightforward!
Be cautious with those brackets though! Corian sinks might not fit like ceramic ones due to their bonding. It could be a good idea to consult a pro for this.