How to remove thin-set mortar or glue from plywood subfloor - The easy way!
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- Опубликовано: 22 авг 2024
- This is a quick short on the best way (really the only way) to remove thin-set mortar from a subfloor after removing tile. Watch the full video to see the whole laundry room renovation, but this info is probably the most helpful.
![How To Remove Underlayment [Subfloor]](http://i.ytimg.com/vi/-Hh96JDrpx4/mqdefault.jpg)
I would suggest trying a good quality 180 grit scouring scotch pad disk first. They're rated for wood and may do the job. However, make sure the disk is speed rated for your grinder and replace often. You would still want the dust collar.
Very interesting! Never saw that shroud before. Thanks for an informative video!! And good job on the grinding!!
Most of these grinders need a 20 amp circuit. Mine were all 15 amp and so it popped my cb too often. FYI
Do it the right way and add backer board
Good tip. How would this work on old hardwood floors? Would it chew them up too bad for refinishing?
Also: how would this method work for non-hardened adhesives that are somewhat gummy?
If I had to guess, I would say you could sand and refinish a floor after using this. But the gummy glue would probably be a nightmare.
Your videos are cool
Thanks man.
My kids tell me I sound like a robot. I’ll have to work on that.
hey @Thingsyourhouseneeds odds are stacked against me but the original tile from the turn of the century was covered with cheap homedepot tile. Original Tile, Thinset, New Tile. I've peeled back some areas and some are much better than others. Would this method work in removing the existing thinset on the original tile? or another insider tip? such a shame what they did to the tile
Nope. This grinder will scratch (destroy) the tile underneath. This diamond blade chews through masonry but goes easy on wood. What is the tile made of that you are looking to preserve? Your only hope would be to use boiling water or steam to try and crack the thinset after removing the top tile. This might cause cracks in the grout for the hood tile as well, but that can be fixed. The only question is whether the good tile can handle the temp/humidity. If it can, you might be in business.
I'm doing this right now .. i have the same set-up i think.... The wheel for concrete? Was your adhesive just gumming up the wheel like mine is? The second this thing hits it, the friction melts it. I found torching it and scraping works well in small areas at a time. Its just destroying hundreds of dollars of wheels... And now im outta propane too haha
The diamond cup wheel is for masonry-type adhesives. So more of a mortar. I don’t know that it would work for softer gummy glues.
@@Thingsyourhouseneeds I mean, this adhesive is from the 70s so it's brittle at first but when it's hit by a wheel going 5000 rpm it gets sticky pretty quick.
@@chicoinchico, yea, I don’t know that this method would work for that.
What would it cost to replace the subfloor? I have a 12 x 27 room that carpet was glued down on.
12 4x8s might cost about $600. Plus another $600 for labor? My guess is you could have this done for about $1500.
@@Thingsyourhouseneeds Thanks!
Do i need to do this if im gunna put floor leveler
I doubt it if your gonna level anyway. What did you do?
Yea. As long as it’s mortar and not some flexible glue. You can just pour the leveler on top.
How much would you charge for this, to make the grinder attachments worth the buy??? Also, would a regular grinder blade at angle still works the same but messier I guess, right ?
I wouldn’t use a regular blade. And I definitely wouldn’t do this without the shop-vac shroud. If someone tried to remove this stuff by hand, it would take days. For $50 cost (price of the blade) you can do this in 2 hours (if you are an armature like me - a pro would take 45 mins). You could probably charge someone $400+ to do this for them.
You could rent a scarifier from Home Depot does the job at perfect
I usually just rent the floor sander from home Depot.....
A floor sander to remove thin-set mortar? Even if you could grind that stuff down, it would just fill the whole house with dust, no?
@@Thingsyourhouseneeds You just forget about your shop vac or something?
The angle grinder with the cup/shroud/shop vac doesn’t cause any dust at all. The guy suggesting a rented sander would probably have a dust problem. That’s just my guess. Not sure if maybe he rents some kind of sander that collects the dust?
I also just don’t think mortar would be easily ground up by a sander.
Dewalt snob... anythings better
Not necessarily
Stanley Black & Decker bought Dewalt so don't worry it'll be good again, not Milwaukee good, but it'll do.
I have a bunch of Milwaukee stuff too. In fact, I’ve modified my son’s power wheel to run using their batteries (maybe I’ll do a video about that - I think I have a few pictures/videos from when I did that).