What "putty" should you use when installing a Blanco Diamond Silgranit sink?

Donna R
by Donna R
I read that you sholdn't use Plumber's putty, but the installation instructions does not specifically identify what should be used. I tried to contact the manufacturer but have not had a reply. Help!
  7 answers
  • Plumber26 Plumber26 on May 24, 2012
    is this going to be undermount or dropin?
  • Plumber26 Plumber26 on May 24, 2012
    and what type of countertop do you have?
  • Donna K Donna K on May 24, 2012
    Honey just call your local home improvement store and give them the specifics on your sink and counter top they will be helpful. Im sure. I use my local store to help with sooooo.... many things they seem more than happy to help.
  • Donna R Donna R on May 25, 2012
    I am specifically asking about the putty used around the drain basket, not the caulking around the outside/under the edge of the sink. My cabinet installer used the correct clear silicone caulk for the seal around the drop-in sink and across the backsplash of the formica countertop.
  • Plumbrite Plumbrite on May 25, 2012
    silicone will work but you will not be able to remove it. Plumbers putty should not be used on natural stone products, due to the oil in the putty that will bleed into and stain the stone. I did see a no oil putty at my local big box store, I have never used it.
  • Silicone is the stuff to use as Plumbrite said, putty will stain the stone. No real worry about removal as this is not something you will be doing anytime in the future.
  • AJ AJ on Jul 11, 2016
    My plumbers used the cream colored putty on my black blanco siligranit sink....It seems to have already stained the material.... Does anyone know what I can use to safely remove the putty and have them re-install the flanges with silicone?