epoxy prep

[jayhawk555]

I have read the reck out of this forum. I have a question possibly too dumb to have been answered already...

I did half of the garage last weekend with Quikrete epoxy.
To prep, I degreased and etched.

Tomorrow, I will do the other side. But, I don't want to use the acid, and risk screwing up the epoxy that's already on the other side of the floor.

So, if I prep by using my grinder, how much do I need to take off?
I tested out a spot today, and with very little grinding, the change in the concrete appearance (color) is dramatic. Does that mean it's enough for the epoxy to bite?

Thanks in advance!

 

[99E36M]

Well my floor is still new (two weeks) but I grinded until all/most of the shine from troweling was gone. My guess is that if it feels smooth to the touch the epoxy will have a hard time holding on.
________
Acrylic Water Pipes Bongs

 

[SivlerBulletMike]

I have read the reck out of this forum. I have a question possibly too dumb to have been answered already...

I did half of the garage last weekend with Quikrete epoxy.
To prep, I degreased and etched.

Tomorrow, I will do the other side. But, I don't want to use the acid, and risk screwing up the epoxy that's already on the other side of the floor.

So, if I prep by using my grinder, how much do I need to take off?
I tested out a spot today, and with very little grinding, the change in the concrete appearance (color) is dramatic. Does that mean it's enough for the epoxy to bite?

Thanks in advance!

Not sure if this will work but is it possible to tape down a tarp on the completed side to protect it? I am going to face a similar issue and plan on trying this.

 

[jayhawk555]

Well, I burned up my grinder, so I got out the acid and tried to keep it where I wanted it.
There, apparently, is a slope that ran the acid right where I didn't want it.

I bailed out to rethink this.

Actually, I was reading about POR15, and thinking I might just put that down on the unfinished side. It wouldn't match, though.
I've used a few of their products and know they make good stuff. I should have bitten the bullet and payed for it.

Would it be dumb to put that over the quickrete epoxy?
I have read quite a few places to put urethane over epoxy for a harder surface. With the (my guess) better product and easier prep, I think I'd be better off. But, I am looking for your educated opinions. ???


I want a beer...

Thanks again.