remove thinset from hardi backer

Reply

  #1  
Old 11-29-15, 07:49 PM
Member
Thread Starter
Join Date: Apr 2008
Posts: 12
remove thinset from hardi backer

so I have about 30sq ft of thinset to remove from some hardi backer that I still want to tile on.. I know I can spray it down and hack away at it and eventually I can get it off..

but wondering if I can speed things along with a demo hammer and floor scraper? I want to avoid damaging the hardie backer.. its hardie 500... since I want to tile over it... is that stuff tough enough to deal with the demo hammer if i keep it at a good angle?

I got a patch of it off by spraying it and using a scraper on my sawzall but looking to speed it along a bit..
 
Sponsored Links
  #2  
Old 11-29-15, 07:58 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Location: USA
Posts: 20,502
Grinder and a diamond cup wheel. Wet it to keep the dust down.
 
  #3  
Old 11-29-15, 09:25 PM
Member
Thread Starter
Join Date: Apr 2008
Posts: 12
Anything special I gotta do to avoid tearing up the hardie backer ? I read a post from someone else that said they used a diamond cup wheel and didn't damage the hardie at all.. But seems like it could shred it no?
 
  #4  
Old 11-30-15, 02:51 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,968
30 sf is only two sheets of hardibacker. Can you not remove the backer and install new? Unless you are really good, you may encounter gouges in the cbu. But a cup wheel will be your best bet if you choose to leave the cbu down.
 
  #5  
Old 12-06-15, 06:42 AM
Member
Thread Starter
Join Date: Apr 2008
Posts: 12
Angle grinder with diamond cup works perfectly... Especially with a dust shroud and my shop vac. Have to stop and knock the dust off the filter but it works and keeps the dust down to pratically nothing.
 
  #6  
Old 12-06-15, 07:02 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Location: USA
Posts: 20,502
Yeah those dust shrouds are amazing. Hard to believe the could work that well!
 
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes