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-   -   Will thinset stick to premix joint compound? (http://www.diychatroom.com/f15/will-thinset-stick-premix-joint-compound-181746/)

Arsinek 06-12-2013 06:30 PM

Will thinset stick to premix joint compound?
 
The seam where my cement board meets up against drywall I used premixed joint compound. Some of the compound is where tile will be, it probably wont be getting a lot of moisture, will thinset adhere to premix joint compound?

oh'mike 06-12-2013 07:04 PM

yes it will stick just fine----

djlandkpl 06-12-2013 07:05 PM

I would prime the joint compound first. The moisture in the thinset could dissolve the compound.

cleveman 06-12-2013 09:53 PM

Tell me something that thinset will not adhere to. The problem is, will what it is sticking to keep sticking to what it is sticking to?

In other words, will the joint compound remain sticking, or will it act like Pam when you spray it on a pan?

oh'mike 06-12-2013 10:02 PM

This is one more dilemma avoided if you waterproof the board with Redguard or Hydroban before tiling.

Arsinek 06-13-2013 06:49 PM

Quote:

Originally Posted by oh'mike (Post 1200194)
This is one more dilemma avoided if you waterproof the board with Redguard or Hydroban before tiling.

Well, I do have some of that stuff. Can you put it over joint compound? Again though this is in an area that at most might get a few specs of water when someone takes a shower.


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