Grind wet or dry??

[Bsheffer]

After reading many threads where folks use the diamabrush, it appears almost everyone grinds "dry". I spoke directly to the diamabrush folks they told me I want to grind wet?? Sounds like the dust of dry grinding is a mess and the slurry that gets created if "wet" is also a mess?? "Water provides a nice lubricant for the cutting head" so stated the manufacturer???

 

[Garage Flooring]

After reading many threads where folks use the diamabrush, it appears almost everyone grinds "dry". I spoke directly to the diamabrush folks they told me I want to grind wet?? Sounds like the dust of dry grinding is a mess and the slurry that gets created if "wet" is also a mess?? "Water provides a nice lubricant for the cutting head" so stated the manufacturer???

Are you using a prep tool or removal tool? Do you have a shroud and vac?

 

[Southbound35]

I can only speak from my one-time experience. I used the Diamabrush prep head from HD last month in preparation for my Armorpoxy. I also debated whether to do it wet or dry. I ultimately decided to do it dry as I was concerned about cleaning up the slurry after grinding wet. I do not have a shop vac nor did I use a dust shroud.

There was certainly some concrete dust in the air but not the amount I was expecting. For better or worse, I didn't even use my dust mask as I didn't feel like I needed it. I did use a small floor fan to blow the dust out toward the driveway as I was grinding, and I stopped every so often to sweep up the dust and put it in a garbage bag. I was pretty well covered after I was done but a quick once-over with the leaf blower cleaned me up. Then I blew out and swept the garage well, mopped several times with water, and I was ready for the primer.

 

[Bsheffer]

Removal tool. I have plenty of shop vacuum units. I have not yet picked a mechanical piece of equipment to do the grinding?

 

[Garage Flooring]

Removal tool. I have plenty of shop vacuum units. I have not yet picked a mechanical piece of equipment to do the grinding?

There is actually a lot of debate about this. The manufacturer and HD say it needs to be done wet -- when using the removal tool. There are some that have had a much better experience doing it dry. I am one of those black and white kind of guys so if the manufacturer says I must go wet, I go wet.

That said, if you are going to do it dry, you have to have a good shroud, the right vac and the right bags and filters. It truly is a matter of your health.

 

[rice rocket]

I ultimately decided to do it dry as I was concerned about cleaning up the slurry after grinding wet. I do not have a shop vac nor did I use a dust shroud.

 

[LegacyIndustrial]

We use the tool everyday, we go dry.
Wet is a PIA and extends the time between prep and coating.

Attach a Dust-Deputy to your standard vac and go for it.
The Dust-Deputy is very useful for any dusty projects after this one (ie woodworking).

The manufacturer is not in the coating business and many of these units are used for polishing prep and not coating prep.

 

[Armorpoxy]

We sell these and always recommend dry. Wet grinding can make a slurry mess that is very difficult to remove unless you have a slurry vac.