Makita Angle Grinder. Grinding Thinset after Tile Demo.
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- Опубліковано 3 тра 2018
- Grinding thin-set mortar leftover from ceramic tile demolition. Click-Lock 12mm Laminate flooring will be installed in this area. Need the slab as smooth and flat as possible to prepare for a professional installation. We are using a Makita angle grinder with vacuum head attachment. This is a great tool!
Blade used was DW4773T Dewalt Diamond Cup Blade
I'm getting ready to do the same thing to prep a 22 year old slab for paint. I'm also adding an Oneida Dust Deputy in-line before the shop vac to cut down on the dust going into the vac. Should keep me going longer before having to clean out the shop vac filter.
That setup is killer for the job. Chews it up like it was nothing.
Thanks… next, show a video about properly installing baseboards around bullnose corners. Those look like mine before I ripped two dozen off, and did them another way. (The right way).
I am working on doing this with this exact machine on a ~300 sq foot area and am having a hell of a time getting the depth right on the angle grinder with the dust guard - I feel like I'm having to use WAY too much downward pressure to make contact with the floor, and then winding up with gauges. It's taking so much longer than I think it should (tomorrow I'm going back to touch up missed spots). I used all 3 spacers that came with the dust guard, but it still seems too "short" of a blade in comparison to the brushes on the guard. Any pointers?
Going to try this next week. My Makita 7” grinder, dust shroud and Harbor Freight DW4773T clone wheel will arrive tomorrow. I have over 1000 Sqft of thinset from tile demo to remove and then another 600 Sqft of hardwood glue (very thin layer) that needs to be leveled.
Thanks for showing how well this does on thinset, I would have to pay over $2500 for a company to do it for me. With my dust deputy, Home Depot shop vac and the setup mentioned above - I’m only out $400 and I get to keep the equipment for future use!
Cool sounds good. Good luck with your project.
Very curious. How did the DIY tile demo, thinset grinding go? I'm thinking of the same thing. Why pay $2500 for a job, only to have to still pay more for some useful tools you could've used for this job anyway.
@@johnhurt888 It was AMAZING! As long as I kept the bucket half empty or less with dust and changed/cleaned the vac filter every 200 or so square feet, the dust was minimal.
Note - dust wasn’t non existent. If I started to grind a slightly unlevel section, some dust would inevitably escape . But for the cost savings and knowledge learned, well worth it. One harbor freight wheel did 1000 sqft and still had a tiny amount of life left in it.
I did not use it on the hardwood glue, ended up using a power scraper rental with a sharp blade to get it all up.
Good luck!
@@johnhurt888 if you are near D/FW I’d let you borrow the whole setup
@@minter66 i dont have that much area, so will try an 18v 4" cordless grinder.
Do you use a 7in or 5in? I have about 1,000 sqft and need to be as minimal dust as possible but would like to finish as quick as possible? Thanks in advance.
What kind of dust shroud did you use?
How many sqft per hour do y’all get with this method? I’ve been renting the big grinders for my jobs but I’m getting a little sick of the leg work and cost. Thinking about investing in something similar until I can get a bigger one for myself
Is that just a regular shop vac, or does it have the filter shake mechanism?
Great video. Can you use this grinder to remove thinset from a cinder-block wall - I have a bit of a nightmare of cement/thinset still stuck to the wall and it's impossible to remove with my jackhammer
I can’t honestly say I know the answer to that question. If you try it be safe, we’ve only used these flat on the ground.
And need big biceps to hold the grinder lol
What blade did you use?
Turbo Diamond Cup Wheel by Dewalt. DW4773T
Yes which blade are you using, is my question as well
Did you find out? I'm curious, too.
T Parson no but it is a diamond cup blade that does that.
After watching several of these type videos I have concluded that the larger diameter cup grinders throw off much more dust than the smaller cup grinders. Five inches seems to be the dividing line between little dust and much more dust.
You maybe correct on that. We need the 5” because we need to grind large areas on a daily basis. Thanks for your comment.
I bought the seven inch grinder and it is a mess. I can't believe folks have the patience to do this as a job. BLESS THEM
Do you ever wet sand and how long do those blades last? Could I do 20x20sqft?
No on wet sand. One blade yes you should be able to get 400sqft done in most cases. Typically every 500-750sqft we need a new one.
Bd pries????
Is that a cement floor?
Yes. Grinding the last of the thinset leftover from tile demo on slab foundation.
@@upwardflooring6736 is it easy to not grind into the cement? And thank u for the quick reply!!
@@jimmysmits6255 yeah just keep a steady continuous motion like in the video and it won’t be any trouble
@@upwardflooring6736 awesome. Thank u so much for the responses. I ordered an angle grinder and specialty blade today!!