Epoxy garage floor paint for most "do-it-yourselfers" may not be a good idea. If you've never worked with it before, it could be more of a hassle than you're prepared to deal with. To avoid having to redo your garage floor every couple of years, you better plan to have the proper equipment when you attempt to do the job.
Do you have a shot-blaster or diamond grinding equipment? If not you'll be following the lame instructions which are on most of the epoxy garage floor paint kits (if you follow them, you're just asking for trouble).
The simple facts are this: epoxy and water do not mix. The companies that make and distribute the DIY (do-it-yourself) kits already know that 99% of their customers do not have the proper preparation equipment to apply the product. So they'll recommend the next best thing to prep your floor - acid etching and rinsing.
Epoxy needs a 100% dry surface to work properly - or else it will be flaking off before you pay-off the credit card that you purchased it with! To acid etch, you'll typically be mixing muriatic acid (you can buy gallons of it from your local hardware store for around five to six dollars a gallon) at a ratio of maybe 8:1 (eight parts water to one part acid) and then sprinkle it around on the garage floor with a plastic sprinkling can (the acid will eat a metal can). Brush it around a bit, watch it fizz (it's what you should see when the acid reacts with concrete surface) and then rinse out with a hose.
Pressure washing would be a better idea (to rinse-out the residue created by the acid) but the problem created with the pressure washer on the garage floor would be that you're actually driving more moisure into the concrete slab. On one hand, you've created the problem of the acid residue (which could be a bond breaker) and on the other hand (if you pressure wash instead of lightly rinsing), you're adding more water into the mix (which also could be a bond breaker) - a lose - lose situation.
The problem that you'll have here would be that you'll be creating a large amount of dust unless you have the proper dust collection system. If you have access to that then you'll do just fine but if you don't, I wouldn't recommend it
From preparation equipment (grinder/shot-blaster, respirators, dust collection) to the equipment it takes to apply the epoxy garage floor paint (rollers, brushes, spiked shoes, respirators), it may be more hassle than it is worth. Pick-up the phone and call or search online for a local installer in your area.
The Poolman / Concrete Doctor
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