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Trimming a Quartz Countertop cutout

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Forum topic by Woodbum posted 07-07-2014 03:37 PM 407 views 0 times favorited 10 replies Add to Favorites Watch
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Woodbum

467 posts in 1755 days


07-07-2014 03:37 PM

I have the cooktop cutout from my recently contractor installed quartz countertops. I want to use it for a surface plate for sharpening, and other tasks where I need a really flat surface. I have a small (12”x12”)machined granite surface plate that I use, but this big 20”x 24”x 3mm chunk of quartz would make a great large surface plate. I know that it will not be AS flat as a machined piece of granite, but I have checked it with a Starrett 36” steel straightedge and it is really flat to these old eyes and a raking light source. Has anyone cut or shaped 3mm quartz material before; and what did you use? Or would it be easier and cheaper to have the countertop shop cut it for me? Any experienced thoughts would be appreciated!

-- Improvidus, Apto quod Victum-- Improvise, Adapt, Overcome


10 replies so far

View bigblockyeti's profile

bigblockyeti

1667 posts in 410 days


#1 posted 07-07-2014 03:39 PM

How much trimming are you trying to do? I’ve knocked the sharp edges off of quartz, granite and marble with just a belt sander. Anything more involved and you’re likely going to need something with a diamond cutting edge.

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Woodbum

467 posts in 1755 days


#2 posted 07-07-2014 03:41 PM

I need to trim it to take out the hole saw holes that they used to start their inside cuts

-- Improvidus, Apto quod Victum-- Improvise, Adapt, Overcome

View Crank50's profile

Crank50

103 posts in 265 days


#3 posted 07-07-2014 06:29 PM

It is made of quartz dust bonded together by epoxy so most abrasive wheels will cut it. Use the ones for stone or concrete.
3mm sounds extremely thin for a surface plate. Going to bond it to MDF or something?

View jonah's profile

jonah

453 posts in 1988 days


#4 posted 07-07-2014 06:37 PM

I’d take it to a countertop/tile fabrication place and give the guys a six pack of beer to cut it to exactly what you want. That’s going to be by far your cheapest option.

Do it around lunchtime or at the end of their day (they normally work until around 4pm here).

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Woodbum

467 posts in 1755 days


#5 posted 07-07-2014 07:56 PM

Crank: Yes I an going to mount it on a double lamination of phenolic faced 3/4”plywood. 3mm is actually about 1 3/16” thick. Thanks for the help!

Jonah: you and I are on the same page. Beer: the universal bartering currency for almost everybody. Thanks for the advice.

-- Improvidus, Apto quod Victum-- Improvise, Adapt, Overcome

View bigblockyeti's profile

bigblockyeti

1667 posts in 410 days


#6 posted 07-07-2014 07:58 PM

Did you mean it’s 3cm thick or 3mm thick? You might be able to cut it with a wet tile saw if you have access to one, but it could be slow going.

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jonah

453 posts in 1988 days


#7 posted 07-07-2014 08:21 PM

I think he meant to say 3cm thick. 3mm (a little less than an eighth of an inch) would not make any kind of countertop for anyone.

View pintodeluxe's profile

pintodeluxe

3447 posts in 1502 days


#8 posted 07-07-2014 08:34 PM

If you have an old circular saw with a diamond blade, you can cut it yourself.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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Woodbum

467 posts in 1755 days


#9 posted 07-08-2014 12:02 PM

Sorry guys, the metric system is not as intuitive to some old guys like me as to others. I said mm when I meant cm… I think. As I said earlier, it is about 1 3/16 to 1 /4” thick, which I guess is cm. Thanks for the correction and the help.

-- Improvidus, Apto quod Victum-- Improvise, Adapt, Overcome

View Bill White's profile

Bill White

3500 posts in 2650 days


#10 posted 07-08-2014 01:39 PM

Take it to the top shop. Ours in town uses a water jet.
You don’t wanna mess with the dust.
Bill

-- bill@magraphics.us

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