However you do need to provide a sealant between the drain and your new cultured marble sink.
Can you use plumbers putty on cultured marble.
However if the damage has already been done do not worry.
The oily ingredients found in the compound can stain porous material such as marble and leave behind a yellowish mark.
Stuff that is more porous than stainless steel or whatever.
Will not crack or shrink.
Stain free plumber s putty on granite marble quartz sandstone and other natural porous materials.
Plumber s putty can and will cause staining on any of the cultured products such as cultured marble granite and onyx.
For this reason plumber s putty should not be used on naturally absorbent surfaces such as marble.
They sell two types of plumbers putty one that is stain free and is for use on stuff like marble granite quartz etc.
Plumber s putty creates a waterproof seal around fixtures and faucets.
For setting frames faucets and basket strainers use this oatey 9 oz.
If you check the label on your plumber s putty you should see a note that says something to the effect.
I recommend that you use silicone.