I used this, too, on my garage floor when I expanded the garage.
It seems to be sticking really well on the "old" concrete, but it has
lifted in a couple of places on the new. When I put a lot of weight on
one point, as in using a floor jack, it will lift. I think it is
probably because I didn't acid etch the new concrete enough. The
Rust-o-leum instructions tell you don't have to use muriatic acid to
etch, just their citric acid. I don't think that works on new concrete.
I did use muriatic acid, but I suspect I didn't let it sit long enough or
used a strong enough mixture. I just have to be sure to have some wood
or something under my jack.
Other than that, I'm very pleased with it.
One other hint that I got from another forum-- use two coats, it will
cover better. You have to recoat after 12 and before 24 hours or you
have to scuff it. Figure on using half again for the second coat. IOTW,
if you used one gallon for the first coat, a half gallon will do the
There is also U Coat It, which is about twice the work and twice the
price, but they guaranty it.
On Sat, 5 Mar 2005 12:28:15 -0600 "Greg Gowins" <firstname.lastname@example.org> writes:
> Hi Ron,
> Last year, when I bought my house, I put down the Rust-o-leum
> coating. It has held up incredibly well. Much like painting a car,
> the key
> is the prep work. You have to get the existing concrete as clean
> possible. We spent about 6 hours cleaning the surface. It turns
> out that
> when the house was built, the painters and drywallers used the
> garage as
> their prep area, and there was a ton of residue left on one side.
> The other
> key is that you must let the surface cure for at least a week after
> it. If you don't, I've heard about problems with hot tires causing
> sealant to lift. For me, that wasn't a problem, since I didn't
> move in for another 3 months! <grin>
> The stuff still looks like new. I don't have any stains or wear
> even though the garage was the rally point for all of the stuff when
> I did
> finally move in. Combine that with the abuse it's taken from
> working on the
> cars, and I'm very pleased with how it turned out.