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Lambo 06-06-2006 11:31 PM

Kitchen Sink/Counter cutting help?
Hello all,

I am new here and you all seem to be very knowledgeable. I have an issue with installing a steel sink in a formica countertop. My contractor friend was helping me, and when we traced the sink outline, the place for the sink clips in the front is blocked by a crossbeam in the cabinet directly below. Because of this, my friend said that the clips cannot be installed and tightened and the countertop will not be watertight. I tried finding a shorter sink, but 22" seems to be standard. Does anyone have any ideas on how to make this sink work? I thought of maybe cutting small square sections out of the crossbeam to make room for the clips. Would that work? I am inexperienced but willing to try almost anything. Thanks in advance for any help.

This is the part of the outline with the beam directly underneath

This shows the beam and the outline above.

Mike Swearingen 06-07-2006 05:54 AM

Run a bead of silicone caulk all around under the sink lip to seal it.
Works for me.

redline 06-07-2006 06:17 AM

It looks like you are mounting the clips on the front of the sink. Is it possible to locate the clips on the sides close to the front of the sink?

Before you put the sink into position put a bead of caulk around the sink rim. Put the sink in place, tighten the clips, put the drain stopper in and then fill the sink with water to put downward pressure on the caulk. Fill the sink as high as possible with water. Let the water stay in the sink until the caulk dries.

Bonus 06-07-2006 09:32 AM

Yeah, you're stuck with the advice you've already gotten. I'd also add one reminder: When you have cut the sink hole out, SEAL THE EDGE with caulk, just rub it in with your finger, this way if you get a drip or two of water under the sink it won't instantly destroy your countertop.

Lambo 06-07-2006 11:29 AM

Hey, thanks a lot guys, I feel a lot better about trying this now. Bonus, do you mean to apply caulk separately to the exposed part of the pressboard on the inside of the cut, before putting the sink down(which will be caulked separately) to do that sealing you discussed? Thanks again all.

Bonus 06-07-2006 11:04 PM

Yes, exactly, you're trying to ensure that the open edge of the mdf is protected from water. I like to spread caulk out for a ways underneath the counter too, away from the cut edge.

It's a cheap thrill, and you'll never have better access than right now until you have to replace the counter which you won't have to do if you do it. (That's a mouthful)

Bonus 06-07-2006 11:07 PM

Maybe you've done this project already, but they do make kitchen sinks at 18" front to back. I'm working on a place right now that has one.

redline 06-08-2006 07:31 AM

If you seal the cut edge under th sink then that reduces the possiblity that water will soak into the particle board and seperate.

You could use oil base poly, oil base primer... not latex.

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