Done with 1st epoxy-coat layer but need patch up suggestions

[dds4]

Hello all--

I just finished my first coat of epoxy-coat two days ago and I'm fairly satisfied with the result. However, there are some spots on the floor where the epoxy went too thin and some of the uneven spots of the concrete are slightly showing through. I would like to fix the problem.

1) Should I order more kits and reapply a 2nd coat?
2) Should I spot sand, etch, and patch up the thin spots?
3) Can I just patch up the spots without sand or etching? (I know this violates their rule about applying a second coat within 24 hours)

The floor is still clean and unused. Frankly, I would like to just patch up the spots if I could without the prep work again. Is this a bad idea?

For those of you who've patched up, does it go on smooth? Can you see the patch marks?

Thanks in advance,
Brian

 

[bmwpower]

Depends on the epoxy. Follow the directions for 2nd coat. What brand are you using?

As a general rule - always apply 2 coats.

 

[dds4]

Epoxy coat. (www.epoxy-coat.com)

 

[Hammerdown]

This is how I would do it...Order enough material to apply a second coat and enact repairs. Scuff sand the coating with an 80 grit sand paper to create a mechanical profile. Remove the debris. If the thin areas are VERY thin, patch in with a small amount of material to provide a finish like the rest of the area. When the patches cure, re-coat the entire area to provide a uniform finish. If the areas do not need a "patch" before the re-coat, just sand the entire area and recoat.
Just my .02$
Let us know what you do and how it turns out.

 

[snorvet]

I used Epoxy-Coat and had a few touch up small (3" diameter) areas where I put down another coat of epoxy. The touch up areas are now raised slightly due to the thickness of the epoxy touch-ups. It looks ok, but in your case, I would order enough for another coat and do the whole floor. Hit the whole floor with a floor sander first to scuff it up a little.

 

[dds4]

I'm assuming I have to sand, etch, and rinse again? Ugh. I hate that part.

 

[SteveL]

No you do not need to etch again! Just scuff it with 80 grit paper and vacumn or rinse. If you rinse, make sure you let it dry sufficiantly. You can scuff pretty quickly using a drywall sander on a pole instead of renting a floor sander.

 

[bmwpower]

No you do not need to etch again! Just scuff it with 80 grit paper and vacumn or rinse. If you rinse, make sure you let it dry sufficiantly. You can scuff pretty quickly using a drywall sander on a pole instead of renting a floor sander.

Going with what Steve said, NO etch. I had pretty good luck with some terry cloth shop towels on the end of a broom. No matter how much you vacuum, sometimes those tiny epoxy particles polarize and stick to the floor. A good wiping with some towels with or without some (compatible) solvent does the trick.

 

[dds4]

Whew! Thanks guys. I'm gonna sand right now while I wait for my 2nd full kit to come.

I'll post pics once I'm done with the second coat.

 

[Kapt]

dds4,

I'm about to paint my floor with Epoxy-Coat. My floor is approx 580 sq ft. and they recommended a kit and a half. They say one kit is good for 500 sq ft. so I plan to use all the epoxy and apply it a little thick, which they say is OK.

How big was your area and how much epoxy did you use? Also, how big of a section did you do at a time? Was drying time an issue?

I'm hoping to apply just one coat. I bought medium gray with flakes.

Thanks.

 

[dds4]

My garage is close to 700 square feet and I ordered 1.5 kits. In retrospect, I wished I had ordered at least one more kit.

They say it will cover up to 500 sq ft. with one kit, but it would be a thin layer and one coat would work if your concrete was nicely leveled and free from cracks and imperfections. So for you, 1.5 kits might be close, 2 kits would be ideal for a glass like appearance you see in the pictures.

I divided my garage into 5 sections (so around 12'x12'). 6 if you include doing the edges of the garage first. I basically mixed a small 1st batch, did the edges of the garage first. Another suggestion is to get a buddy to help you. I got my wife to do the flake spreading, which made it a lot easier.

This epoxy is pretty liquid initially, then it starts to heat up and get tacky within 15-20 minutes. When it gets tacky and sticky, it's harder to spread it. And this was nighttime in the Bay Area, where the temp was around 70 degrees and the humidity is low.