Trying to prep for my Epoxy Coat. New Concrete

[cardr]

So the builder didn't listen to me and put sealer on the garage floor. I got some ********* stripper/degreaser and put that down. I know it took something off the floor because as I was scrubbing it was very slippery and had a white film. I rinsed 4-5 times with a pressure washer. I then let it dry overnight and followed up with the Epoxy Coat acid etching. I rinsed this 3-4 times with the pressure washer as well. In the picture it looks like white film on the concrete, but none of this comes off on your fingers if you wipe it. I'm just concerned because the surface is really smooth. Looking at it under a magnifying glass there are some spots that I see the pores....but not sure if it's enough. I'm tempted to try a spot, but I guess really won't know if it adheres until much later. I really don't want to diamond grind, but then again don't want to waste the $1000 on epoxy either.

What are your thoughts opinions?

Thanks,
Doug

 

[Shea]

Did you do a water test after the concrete was dry? If so, did it absorb the water right away or did it sit there for a while?

 

[LegacyIndustrial]

In light of the sealer being applied I would imagine the acid etch was not effective.

I would recommend diamond grinding the floor, priming and applying your coating.

 

[Turbotboz]

Bite the bullet, diamond grind, and never look back. I also suggest priming if you are unsure of proper absorption or profile.

 

[LegacyIndustrial]

Bite the bullet, diamond grind, and never look back. I also suggest priming if you are unsure of proper absorption or profile.

 

[bdamico]

weak

 

[rugerlady]

I am going to say this needs to be diamond ground!

 

[pauls_workshop]

I am going to say this needs to be diamond ground!

Now there is some common sense! You can't acid etch when it has sealer on it. Forget it. Needs grinding or shot blasting the sealer off before epoxy! - Paul