Kitchen backsplash problem


  #1  
Old 07-11-17, 02:58 PM
R
Member
Thread Starter
Join Date: Jul 2017
Posts: 4
Upvotes: 0
Received 0 Upvotes on 0 Posts
Kitchen backsplash problem

Hi everyone! I am tearing down an awful old tile backsplash in a kitchen on a new house purchase and it appears what is under it is plaster over a cement board. Any advice? My options I thought of is try to scrape the top coat of plaster off and save the cement board underneath. Option 2 is to replace the cement board with drywall. I don't want to take off the cabinets though and think option 2 might be problematic on matching the cement board with drywall and a seam? Any ideas? Help! Thanks in advance.
 
  #2  
Old 07-11-17, 03:21 PM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,221
Received 753 Upvotes on 658 Posts
Welcome to the forums!

Do you intend to put up a new backsplash? I'd scrape off what is loose and then smooth it out with a setting compound like Durabond.
 
  #3  
Old 07-11-17, 03:25 PM
R
Member
Thread Starter
Join Date: Jul 2017
Posts: 4
Upvotes: 0
Received 0 Upvotes on 0 Posts
That is a great idea. Yes i am going to put up a new backsplash. Would you do the durabond then mortar the tiles over the durabond?
 
  #4  
Old 07-11-17, 03:44 PM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,221
Received 753 Upvotes on 658 Posts
Thinset can be applied over the durabond. It's possible you could use thinset alone, it all depends on how thick it can be used under the tile.
 
  #5  
Old 07-11-17, 03:55 PM
R
Member
Thread Starter
Join Date: Jul 2017
Posts: 4
Upvotes: 0
Received 0 Upvotes on 0 Posts
Thanks mark. One last followup. As i removed the old tile it left a brownish adhesive. Not sure if that is old thinset or adhesive. It is sitting on the plaster. As I chiseled away at the tiles, the plaster would come off in some spots leaving my able to see the cement board underneath. How can i remove all the plaster efficiently to durabond it? Some of it doesnt want to leave the cementboard easily...
 
  #6  
Old 07-11-17, 04:44 PM
czizzi's Avatar
Member
Join Date: Jul 2007
Location: USA
Posts: 6,541
Received 15 Upvotes on 13 Posts
A 3" wide stiff putty knife with a hammer used like a chisel to cut across the direction of the trowel lines to remove as much of the mastic as possible. It is tedious work but you need a smooth surface to retile. If using a setting type compound like Marksr suggests, I would prime and paint it before your tile application of thinset. You will get a better bond.
 
  #7  
Old 07-11-17, 04:58 PM
R
Member
Thread Starter
Join Date: Jul 2017
Posts: 4
Upvotes: 0
Received 0 Upvotes on 0 Posts
Thank you. Very tedious indeed. I am chiseling right now. Great idea about the tile and paint before thinset. I would have thought the reverse. Thanks all!
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: