OK Guys-This is only my opinion, (I'm a sandblasting and painting contractor) 23 yrs ago my 1st product rep said stay away from two kinds of paint work- floors and pools- mainly because they get the worst abuse, and like aircraft maintainance, if it isn't done right, it doesn't work.
First off- you get what you pay for. Cut a corner and you'll wish you had used a clear sealer. Ever try to remove that peeling paint after it was installed wrong?
MD was right-prep is THE most important.
Second- Usually anyone can get a proper job if they just read the instructions on the can-don't improvise.
Third- If you want a color- A polyamide epoxy (like tile clad) is the most cost effective way to go and still get good wearability.
Here's the way I do it:
If the floor is dirty or has oil stains on it, clean it with a STRONG detergent, use solvent (cheap laquer thinner-scrub) to get the worst oil stains (muratic acid won't touch oil).
Acid etch with a strong solution- One gal acid to 3-4 gal water. Dump on floor, move around with a broom. The acid is like a sander, roughing up the surface, removing the creme. You want a rough surface- like 100 grit paper, to give the surface a profile, or anchor pattern for the paint to adhere to. Rinse with water (it neutralizes the acid) Vacumn up the water till it's dry.
I just did the bathroom in my hanger and the short time the oak trim was exposed to the acid and water didn't hurt it a bit.
Next step- application- mix your two part, let it sweat in (sit for 30 min.) re-mix, and add in 3 qts epoxy solvent to the 2 gallons mixed. Stir in. (This makes the paint as thin as beer, and it will soak into the surface better - it'll go a long way when it's thin- maybe 400 to 700 sq. ft. per gal depending on how you apply it)
If you have some spike golf shoes you can get back on it for the first full coat in 3 to 4 hrs without leaving foot prints.
Apply the second coat (first full coat)-simple as that.
OKAY- This may help determine how you do this:
1-Add in the time it takes to clean the hanger out.
2- The time it takes to clean and etch the floor, and mat'l.
3- The time it takes and cost of mat'l to apply the two coats.
LOT OF WORK, PAIN IN THE ASS.
Now add 20% for the cost of the epoxy, and know all that work wasn't for nothing.
Also, if one thin, and one full coat give you a comparative 8-10 years before it wears thru to the concrete, putting on one more full coat will give you comparativly (sp) 13 -15 yrs. (Dad's went 18 yrs and only wore thru at the entry door). And that next coat will make the floor look like a million.
Whew! I'm headed to the hanger! Need any more, call me at 815-742-3648.
Wilbur