Coated (saealed) concrete floor prep

[thool]

I had my garage floor poured about 5 years ago, and the contractor went around after with a pump spray bottle and coated the concrete with some sort of sealant. Most of it has worn off, but there is still a dull to moderate sheen in some areas.

I'd like to epoxy coat the garage floor, but want to know what to do about the sealant. Do I have to somehow remove it with a light sanding first?

Thanks.

 

[Garage Flooring]

If you still have a sealer on the floor we would suggest grinding the floor

 

[thool]

Can you please describe the grinding you suggest?

Sent from my XT1034 using Tapatalk

 

[Garage Flooring]

Can you please describe the grinding you suggest?

Sent from my XT1034 using Tapatalk

Diamabrush. Available for rent from Home Depot. If there is a visible coating use the coatings removal tool. If not use the concrete prep tool

 

[Shea]

Here is an example of grinding your garage floor. It includes the Home Depot video.

http://allgaragefloors.com/how-to-grind-garage-floor/

 

[thool]

Does the coatings removal tool remove any oils that have settled into the concrete, or is a degreaser recommended?

 

[Shea]

Degrease first, then grind.

 

[Garage Flooring]

And degrease again if needed

 

[LegacyIndustrial]

Teddy:
If the oils/stains are not too deep the grinding will take care of it.
If you are still not sure, cast a small cup of water on the stain, if it beads up then you have some more work to do.

 

[Armorpoxy]

We carry a special Oil Barrier product for oily areas if you can't get the residual out.