Most of the time its recommended install with clear silicone.
Can i use plumbers putty on granite composite sink.
Easy to use and easy to remove plumber s putty creates a watertight seal that should never dry out.
Plumbers putty depending on the basket strainers some come with a rubber washer.
When you need to seal a sink rim faucet or drain there s no better choice.
Plumbers putty is most often used to put together sinks and seal them to prevent water leaks.
Unless the manufacturer of your composite says that it s safe it s best to just assume it isn t and treat it like you would regular granite.
Sometimes its fine sometimes it leached oil into the sink or counter staining it.
That or make sure the putty that you are using is non staining.
Careful to buy the right putty if you have a stainless steel sink you can use either kind of putty if you have a granite composite sink you need putty that will not stain the sink.
As a licence master plumber i use plumbers putty all the time to seal drains in sinks and baths.
I would take the safe route and just use silicone since i ve seen what plumbers putty can do on granite.
However i have seen many plumber s to try puty.
Two different types of plumbers putty.
In this episode of repair and replace vance shows how to properly use plumber s putty on a bathroom sink drain.
Sta put ultra plumber s putty is designed for use on granite stone.