Ceramic Tile Advice Forums - John Bridge Ceramic Tile

Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet


Advertiser Directory
JohnBridge.com Home
Buy John Bridge's Books   Buy a TYW Shirt

Go Back   Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Tile Forum/Advice Board

Sponsors


Reply
 
Thread Tools Search this Thread
Old 08-13-2007, 12:19 PM   #1
You-niquePerspective
Registered User
 
Join Date: Aug 2007
Posts: 4
Tile over Polyurethane

Hi. I am a first time everything. I built a kitchen island table (it beautiful btw) and stained the countertop. But I want to cover the top due to the mistake I made driving the nails through the top. I thought the putty would cover the nail holes but it didn't work with the stain. Can I tile over the wood and polyurethane? Will the tile adhesive work? I applied 3 coats of poly.
You-niquePerspective is offline   Reply With Quote
Sponsored Links
Old 08-13-2007, 01:24 PM   #2
ddmoit
Veteran DIYer -- Schluterville Graduate
 
ddmoit's Avatar
 
Join Date: Dec 2006
Location: SE Tennessee
Posts: 8,948
Welcome to the forum, You. How about giving us a first name to call you?

I don't think thinset will bond to polyurethane, but there are ways to get around that. The first thing the pros will want to know is if your counter top is strong/stiff enough for tile. Tell us more about its construction.

Once we're certain its strong enough, you could probably attach a 1/4" layer of CBU, properly thinset and screwed. Or, you could attach a 1/2" of plywood and put Ditra over that. There are likely even better ways that the ones I just mentioned.
__________________
Dan - a DIYer in SE Tennessee
ddmoit is offline   Reply With Quote
Old 08-13-2007, 05:07 PM   #3
You-niquePerspective
Registered User
 
Join Date: Aug 2007
Posts: 4
Thanks Dan!

My name is Tina. The countertop is 1 x 24 x 48 stain grade wood (i think pine). Looks as if 1 x 8 x 48 pieces were put together with something like dowels and glue. I purchased it that way. What is a CBU (sp?) and is thinset the tile adhesive? I am actually going to do more of a mosaic rather than all square tiles (if that makes a difference). Thanks again. Tina
You-niquePerspective is offline   Reply With Quote
Old 08-13-2007, 05:51 PM   #4
ddmoit
Veteran DIYer -- Schluterville Graduate
 
ddmoit's Avatar
 
Join Date: Dec 2006
Location: SE Tennessee
Posts: 8,948
Hi Tina,

CBU stands for Cementitious Backer Unit. It's also called cement board or backer board. Popular brands are Durock, Hardiebacker, and Wonderboard.

Thinset as used here refers to a portland cement based adhesive powder that needs to be mixed with water or some latex additive. It never comes pre-mixed.
__________________
Dan - a DIYer in SE Tennessee
ddmoit is offline   Reply With Quote
Old 08-13-2007, 08:45 PM   #5
You-niquePerspective
Registered User
 
Join Date: Aug 2007
Posts: 4
Poly over tile

Can I do a couple of coats of Polyurethane over the finished tile (mosaic)? Or does the tile sealer have the same purpose and look?
You-niquePerspective is offline   Reply With Quote
Old 08-13-2007, 09:37 PM   #6
jadnashua
Veteran DIYer- Schluterville Graduate
 
Join Date: Jul 2004
Location: Nashua, NH
Posts: 8,947
It sounds like the top of the counter now is planks. You can't tile to them, you need some plywood down first, then a decoupling layer. That layer could be cbu or a membrane like Ditra, EasyMat, one of the Nobel products, or possibly others. Since the ply would need to be screwed to the planks and it would become the new base for the tile, it doesn't matter that the planks are coated with polyurethane.

You'd be much better off finding a mosaic that has the finish you want. Anything you put on top of it will wear off. One of the big reasons to go with tile is it is less maintenance and will look good for a long time. If you want the grout to be shinier, you should consider an epoxy grout.
__________________
Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, and Longtime Forum Participant.
jadnashua is offline   Reply With Quote
Old 08-15-2007, 11:48 AM   #7
You-niquePerspective
Registered User
 
Join Date: Aug 2007
Posts: 4
Plywood before CBU

THanks Jim. Would the 1/4" plywood be thick enough. Somewhere I read that I would need to drive screws every 4" to 6" on the CBU. Correct? ANd can I use 6x1 drywall screws? Can I use fewer screws when attaching the plywood? Referring back to your earlier response, would the glossy sealer /finish not really have any positive effect on the finished tiled top? Thanks again for your help! Tina
You-niquePerspective is offline   Reply With Quote
Old 08-15-2007, 04:44 PM   #8
jadnashua
Veteran DIYer- Schluterville Graduate
 
Join Date: Jul 2004
Location: Nashua, NH
Posts: 8,947
Nope, you really need at least 1/2". If that's going to make things too thick, then maybe you should think about removing the planks, and then build it back up with some 3/4" sheets (two would be good).
__________________
Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, and Longtime Forum Participant.
jadnashua is offline   Reply With Quote
Reply

Buy John's New Book!   Tile Your World Online Store   Contractors Direct Tile Tool Store   Stonetooling.com   Tile-Assn.com


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 07:48 AM.


Sponsors

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2014 John Bridge & Associates, LLC