I plan to use 12X12 granite tile for our kitchen countertops. We have
installed a 3/4 MDF top over the counters. I have since heard that Type I
mastic is not recommended over masonite, etc. Others have told me that Kilz
as a primer or scarifying the MDF will allow the mastic to "hold" the tiles.
Also, can the tiles be butted and grouted only in the chamfered edges or
should there be a tiny gap?
Thanks for and help.
you shouldn't use mdf. if you aren't making a mortar bed, you need a thicker
you can use exterior plywood or chipboard. you then need to use 1/2" cement
board. you then tile to the cement board.
no. use the thinest spacers for granite. 1/32" i believe. use unsanded
cave creek, az
Having just did this, I agree with Charlie 100%...
You do not want to use MDF for a counter top...
I used 3/4 exterior grade plywood, a layer of thinset, 1/2 wonderboard, a
layer of thinset, and then my granite tiles... Install came out awesome...
Even built in my own customer undermount sink... Did a nice wood strip on
the front of the granite to match the cabinets...
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