I'm in a bit of a bind with my quartz cooktop. The hole that was cut for it is actually a few inches larger than the cooktop itself, which is causing it to slide around on the counter. There's about an inch of space beneath the cooktop that's exposed, and I'm looking for a heat-resistant material I can use to fill this gap so the cooktop stays snug. Ideally, it should be something that's easy to cut to size. Any suggestions?
2 Answers
It sounds like a tough situation, and I feel for you! If you want to avoid replacing the countertop, you might have a look at heat-resistant foam strips or even rubber! They’re usually easy to cut and can withstand kitchen heat, plus they'll help keep the cooktop from sliding around. Just check the heat ratings when purchasing to ensure they're safe.
Honestly, if the fabricators messed up, they should be responsible for replacing the countertop with the correct cutout. But if that’s not an option, you could consider a stainless steel ring or something similar to fill the space. It would need to be durable and heat-resistant, but I’m not sure how easy it is to find something like that in those dimensions. Maybe check with a hardware store?
If they do replace it, make sure they double-check the measurements this time! Otherwise, if it’s just a small gap, some high-temperature silicone or heat-resistant foam might work, it would keep the cooktop steady without damaging it.

Definitely check out those foam strips! You might find some by the insulation materials at home improvement stores. Also, you could use high-temp silicone to secure them in place after cutting.