Used plumbers putty to install drain flange on granite-y sink

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Old 04-14-16, 10:08 AM
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Used plumbers putty to install drain flange on granite-y sink

Hi all,

Very excited to have joined this community, as I suspect I'll have many questions for everyone. We recently moved into a new house with lots of problems. One problem that I thought was in the scope of my abilities to remedy is the replacement of an old, rusted, and leaking garbage disposal. I did it, no problems, but then happened to read the warning on the back of the Oatey Sta Put container: DO NOT USE STA PUT IN DIRECT CONTACT WITH MARBLE, GRANITE OR OTHER POROUS STONE, CERAMICS OR MANUFACTURED SUBSTITUTES. I have a stone-like, seemingly porous sink that appears to be some sort of composite (says PMMA on the bottom) and I'm worried that I have ruined the damn thing. Should I remove the flange and replace with silicone or stainless plumbers putty, or is the damage (if any) too late to undo?

Many thanks-- I was up late feeling bad for accelerating rather than reversing the entropy of the house. This is after I fixed the dishwasher not-draining problem, but only after having water pour out all over the wood floor, resulting in some minor cupping. My wife is, understandably, not pleased.

Dan
 
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Old 04-14-16, 11:26 AM
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I'm pretty sure that it will be fine.
 
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Old 04-14-16, 11:29 AM
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You've gotta love the label. I've laughed at it before. With their exclusions there are almost no sinks you can use it on except glass and metal. I use plumbers putty on all sinks including white cultured marble ones and have never had a problem. I think the issue relates to possible staining. Plumbers putty is basically just clay with mineral oil. Some porous materials can absorb the oil and take on a darker or stained appearance.
 
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Old 04-14-16, 01:02 PM
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Yes I would remove the putty and use a type of silicone.. You did no damage now but over time certain surfaces will get hairline cracks from the putty...

http://www.doityourself.com/forum/pl...trainer.html#b



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Old 04-14-16, 01:26 PM
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Thanks! I think I'll go ahead and replace w/ the stainless putty, just so I can sleep easy.
 
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Old 04-14-16, 02:46 PM
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I do plumbing work after new granite installs, and all other counter surfaces.
Regarding the staining, this a huge warning for others:

Do not roll out the putty on the counter surface, especially granite. Rolling the putty will leave what looks like oily tracks or a big stain.

The stain will not come out and I've had situations where the counter needed replaced at great expense.
 
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Old 04-14-16, 03:31 PM
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Wow, that's crazy!

 
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Old 04-14-16, 04:09 PM
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The stain will not come out and I've had situations where the counter needed replaced at great expense.
Yup... Tell us how we know!!!! LOL
 
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