New garage-floor covering....
No polished is not all that great. You cant get the polished concrete bright enough. Period. If you want to optimize the lighting characteristics you have to go with a reflective color. How do I know? Well I have polished concrete here:
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And it still absorbs oil spills = never come out. They wipe right off the epoxy.
Yes polished concrete will stain with oil
You could use a sealer or a concrete stain but anything that would scratch off the paint would also scratch the stain and gouge the concrete
As far as coverage, 2 gallons for a 1 car, 3 gallons for a 2 car provided you don't have a lot of excess area besides parking space
You can keep color consistency by making sure it all has the same batch # . On the top of each can will be a series of # make sure all # are the same that will mean it was produced out of the same batch and color inconsistencies are less likely( yes I have seen that especially the gray)
It does have a pot life once mixed so I'd avoid mixing multiple gallons together unless you have a lot of friends to help or can roll like the wind (cue the theme to "rawhide")
Temperature and humidity has A lot to do with pot life the hotter the day the less working time you have
Ideally a 70 degree day as little humidity as possible with no recent rain or forecasted rain
Degrease it scrub with a deck brush until you feel like your arms are going to fall off, etch it power wash it, wait at least a full day to dry before you coat it, don't park your car in the garage after you prep it, avoid even walking on it
Just like the paint job on your car, the better you prep it, the better results you will have
Also run tape along where the garage door rests so that it isn't painted outside you'll really notice the UV sensitivity if you dont
You have I believe 6 days to put on another coat or else you'll have to scuff sand the previous coat
Also if you use an anti skid additive stir often, very often or else you'll have it right at the beginning, smooth near the middle and 80 grit at the bottom of the bucket
Sherwin Williams and PPG make similar products, have used all 3 can't tell much difference, (PPG seems to be a little more UV sensitive)suggested the rustoleum because it can be found at your local Lowe's or Home Depot
PS don't skimp on the roller cover, epoxy is hard on a cover and a cheap cover will fall apart half way through, also wind masking tape around the cover several times before you start, it'll get rid of all the "fuzzies"
