Garage epoxy turned orange from hot tires?
 

Is this normal on a new construction home garage with epoxied floors included? Hot climate, hot tires, led to this. A friend in the business and Google says its a sign of cheap epoxy being used. Or is it standard epoxy is not good enough just like standard drywall paint is not as durable as expensive stuff?

Builder is saying they won't fix it because it will just happen again.

What do you guys think? Anyone have any experience with this?

I live in NC (not exactly cold) and did my own floors with a product from Home Depot. If my floors get marks like that, it just takes a mop to clean them.

Yes, it's somewhat normal. I have an epoxy floor that was professionally installed with almost the exact same color and texture. From time to time hot tire stains do appear, because the carbon black from hot tire treads migrates onto the epoxy sealer. Hot water and detergent mopping will usually remove most of it (or scrubbing). Garage floors never stay perfectly clean - typically. The home is not a new construction home IMO, because the epoxy surface at the door threshold is weathered from UV. See photo. PS: If you want the epoxy surface to remain unstained from hot tires park on carpet squares or similar.
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Sure looks like cheap epoxy used, but what do you expect from a home builder?

I put racedeck in my garage instead of doing epoxy, and it has been awesome.

I had my garage done years ago and I've never had that issue. I do have a strip that basically sits outside the garage when the door is closed and that part has started to turn dark over the years from the UV, however nothing inside the garage.

I just had the garage done with epoxy in new house we are moving to and they told me they use special UV epoxy now with a UV top coat also. They did say it's slightly cheaper if you get only UV top coat and not the epoxy. They had different names for each.

But yeah that doesn't seem normal for a professional epoxy. I have seen houses that claim to have epoxy floors but it's clearly just cheap paint with flakes in it.

I actually used the Rustoleum RockSolid Polycuramine coating. It has been great and I am very happy with it. The part exposed outside the door has been impacted by UV, but I am not too worried about that. I did it myself. Prep was a real pain, but I think that is a key to getting a durable, long-lasting finish.

you sure its not dirt that will come off with a good scrub

Ive used the cheap home depot kit in the past, and never had an issue that a good scrub couldnt fix.

I mop and scrub my epoxy floors regularly. Water from rainy days drips dirty water and really f's up the floor and it doesn't soak into open concrete, need to maintain it. The things you own end up owning you....