Epoxy for undermount sink studs

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Old 11-29-17, 09:13 AM
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Question Epoxy for undermount sink studs

Just got a new vanity, and the undermount sink it came with says I need to epoxy some studs in the holes under the counter for the retaining brackets for the sink. The instructions are not great, what epoxy should I be using for this? The countertop is marble.

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Old 11-29-17, 09:29 AM
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Contact your stone or counter supplier to see what they recommend, especially if the counter is already installed.

I use 15 min. epoxy but I've always glued them in place before the counter is installed. I have the counter upside down so the glue won't run out before it's cured.
 
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Old 11-29-17, 09:36 AM
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The counter isn't installed. I was planning on flipping the counter over to do this, like you say. Which 15m epoxy? Loctite?
 
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Old 11-29-17, 10:26 AM
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Any two part epoxy is fine. Clean the underside with denatured alcohol first. Also align the sink and trace the outline with a pencil before gluing the studs.
Use 100% silicone on the flange also. Caulk it twice. First caulk just a small bead and then fill the remaining gap after top is installed.
 
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Old 11-29-17, 12:06 PM
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And also use silicone to put the countertop on the vanity? Or some regular kitchen / bath adhesive?
 
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Old 11-29-17, 05:10 PM
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I would use silicone to secure the top. Just a dab every 4 - 6". Most adhesive caulk will get very hard with age and it will be difficult or impossible to remove the top without damage if ever needed.
 
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