Skim coating concrete

[JMURiz]

I know this is kind of Off-topic because it relates to an a/c unit pad and not a garage floor, however it is in regards to concrete, so what the hey...

I poured some concrete for my a/c unit (home sized unit)to be placed. The outcome left much to be desired on the finish, as some of the concrete got wet before setting up properly. Does anyone know of a way to do a skim-coating of a grout-like substance to make the surface look better before putting the a/c unit on it?

I think I've heard of people doing a layer of grout to finish off a layer of concrete that has set-up to make it better looking...and since it's for a static object to be placed, it won't wear.

Thanks for any suggestions!

 

[nonhog]

I'd consider adding outdoor tile or slate or some such thing . I have only seen and heard bad things about skim coats.
I think expansion/contraction and the fact concrete wont stick to concrete
could be a factor.

 

[menz300]

You can do an overlay as long as you use a primer/bonding agent to make the 2 materials stick together. There are products you can buy at big stores by mapei that are used for skim coats on floors. there are many brands that is only one I can think of off top of my head. They are used a lot in decorative concrete to give you a blank slate if you will to do acid staining.

 

[JMURiz]

Thanks for the suggestion, I'll look into it.

Would something like a self leveler work also, just wondering...as long as it had a primer/bonding agent put down first?

 

[SimpleManLance]

got any picture of this pad? if its not messed up by the edges i would just take some epoxy coatings and pour it in the pitted area and try to let it self level.