Epoxy over expoxy

[ollie76]

My garage has got a concrete floor that has been painted with a pretty nice epoxy. I have noticed though that where the car tires roll in and out of the garage, some of the epoxy has come up and it looks a bit rough. The rest looks great and seems to be holding up well.

Can you re-epoxy over the damaged areas or do you have to re-do the whole thing?

 

[Armorpoxy]

Generally speaking yes, but the colors will never match and it will look like a patch job. We have seen people do black 'racing stripes' under the tire lanes with our Armorclad 100% solids epoxy and protective topcoat. This way there is no attempt to match the existing color.

Lightly sand the surface with 150 sandpaper prior to coating for adhesion.

 

[ollie76]

That's actually a neat idea!

 

[Armorpoxy]

Thanks! We try!

 

[LegacyIndustrial]

Make sure you grind the lanes. This may be why the first attempt failed.


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[ollie76]

I didn't do the original, it was already done when we moved in so I'm not sure what product they used. So if I grind the lanes, do I have to grind down to bare concrete?

If I just decide to do the whole floor over again, I guess I can just sand the whole thing again and re-coat.

 

[LegacyIndustrial]

Always go back to concrete if the existing coating is suspect.


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[Southbound35]

Not to hijack this thread, but I have a similar issue. However, its our concrete patio that has the epoxy already on it. Its half in sun and half under a porch, and has an oddly-colored (IMO) epoxy covering on it that we'd like to change. Sounds like I might be able to sand/grind it to rough it up and apply a different epoxy over the current one.

As I'll soon be renting a buffer with a Diamabrush to prep my garage floor for Armorpoxy, I thought I might do the patio area while I have the machine. Would this be overkill for the job? The current epoxy on the patio is very well adhered; would I be better off doing a light sanding instead?

TIA

 

[Armorpoxy]

Hi,
May we suggest if you have an outdoor space like a patio to just coat it with our ArmorTop Acrylic Epoxy. You don't need to prime it since it's already coated, just sand it lightly for adhesion. This is the same product we sell to amusement parks and municipalities for sidewalks and such. Also used on tennis courts.

Easy to use, no mixing, long open-can time, virtually goof proof.

https://armorpoxy.com/pool-coatings-outdoor-patios-decks/armortop-outdoor-acrylic-epoxy-coating/

 

[Garage Flooring]

I didn't do the original, it was already done when we moved in so I'm not sure what product they used. So if I grind the lanes, do I have to grind down to bare concrete?

If I just decide to do the whole floor over again, I guess I can just sand the whole thing again and re-coat.

Armorpoxy is right, you can generally get away with abrading the coating and going back with something else. BUT what is your time worth? Like Scotty said you have no idea how good of a job they did. Rent a Diamabrush coatings removal tool, get back to bare concrete and start fresh -- and avoid starting a new post in a couple of years about doing it yet again

Not to hijack this thread, but I have a similar issue. However, its our concrete patio that has the epoxy already on it. Its half in sun and half under a porch, and has an oddly-colored (IMO) epoxy covering on it that we'd like to change. Sounds like I might be able to sand/grind it to rough it up and apply a different epoxy over the current one.

As I'll soon be renting a buffer with a Diamabrush to prep my garage floor for Armorpoxy, I thought I might do the patio area while I have the machine. Would this be overkill for the job? The current epoxy on the patio is very well adhered; would I be better off doing a light sanding instead?

TIA

I am not a huge fan of epoxy in exterior locations. IMHO I would grind the epoxy off and go back with a tinted acrylic or an acid stain and acrylic combo.

 

[LegacyIndustrial]

If its down tight, the diamabrush is overkill. You want to sand it, not remove. Use a sanding screen on a buffer. 80-100 grit.


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