I’d go for it on the DIY epoxy. I’ve done 3 garages with very good results. I did my Mom’s old house in 1992. It still looked great when she sold it in 2016. The only place with a nick in the epoxy was where I slipped with a pry bar and actually gouged the concrete floor.

I used Sherwin Williams Tile Clad II. I just checked with the industrial products store here in Loveland near the local airport last week and the Tile Clad product is still available. They can tint it to virtually any color. You can add chips if you like that look. Or you can add silica for traction... or you can just go with the product itself and be careful when there’s snow on the ground. You can also pick the sheen—from roughly eggshell to gloss.

For what it’s worth, I just used the product itself with no additives for traction in my Mom’s garage. She ranged in age from 55 years old to 79 years old when she was living with that floor and never complained about it being too slick. In fact, I recently offered to re-do her new house garage floor to add some silica and she doesn’t want it! Stubborn old bird at 81 years old. She likes to be able to mop the floor and is afraid the traction additives will make it hold the dirt.

Even though your floor is new, I’d suggest at least doing an acid etch. Muratic acid is readily available and not as scary to work with as it sounds. You’ll also need to wait some period of time before coating your brand new floor. Buy the rollers the guys at the Sherwin Williams store tell you to buy. I tried some el cheapo rollers one time and they melted—leaving a fuzzy, gooey mess in my white floor. Whattamess!

If you sign up for the Sherwin Williams loyalty club thing, they’ll send you coupons periodically for 30-40% off. I think you should be able to get the price down to $1.50/foot. Whatever you do, DO NOT use the crap the big box stores sell. It WILL flake off and it’s a pain in the rump to remove it and start over.

Definitely a DIY-able task if you’re at all handy around the house. I’m going to be doing around 1000 ft. worth of garage space at my house sometime this summer if I can find the time. I’d be happy to talk with you about it if you’d like to PM me your contact information. I’m not affiliated with SW in any way—just a satisfied customer.