How To Remove Cultured Marble Bathroom Vanity Countertop - Building & Construction - DIY Chatroom Home Improvement Forum

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Old 03-04-2011, 09:50 AM   #1
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How to remove cultured marble bathroom vanity countertop

I will be replacing my existing cultured marble bathroom vanity countertop with a new cultured marble countertop. I am not replacing the vanity; it is brand new. So first I need to remove the existing countertop without damaging any of the vanity wood. The countertop is not screwed into the vanity. Instead there is a bead of adhesive between the countertop and the vanity, and there is a silicone caulk bead between the edge of the vanity and the tile on the wall.

I assume I can use a utility knife to cut the silicone caulk at the edge of the vanity.

But how do I loosen the adhesive between the vanity so that I can lift off the old countertop, and do this without damaging the vanity wood? What tools and techniques do I use?
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Old 03-04-2011, 01:15 PM   #2
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same way, unless they used construction adhesive and then it may be difficult. Might be able to use a hacksaw blade to saw through the adhesive between top and vanity base if razor knife won't work.
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Old 03-04-2011, 01:26 PM   #3
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You might try a stiff scraper, maybe 1"-2" wide. Sort of like a taping knife, but more ridgid. Get it between the top and vanity and tap it along with a hammer.
Don't use a construction adhesive for the new top. Silicone caulk is more then enough to hold it in place.
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Old 03-04-2011, 04:36 PM   #4
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Done a couple of these with what appeared to be construction adhesive. Try using a "hot air gun", these are available at the apron stores and affordable. I use one to heat the adhesive and it will get a bit soft, but not so soft it will pull apart. As stated, use a stiff scraper, sharpened at that, and hammer it into the glue. Do not use a flexible putty knife. After removal, clean up the vanity frame and a good idea not to use construction adhesive again, silicone caulk if fine.
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Old 03-04-2011, 04:56 PM   #5
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You can also realize great success using a garrote or ligature made from fishing line or guitar or piano wire string.

A guitar string has worked for me and you can generally find a place to thread it through an existing gap for a starting point.
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