Help with Epoxy prep for Shed where I cannot rinse

[musgofasta]

I have a 9x20 shed about 20 years old. 50% garden storage and 50% powertool shop. No cars and hot tire issues to deal with. Shed is water-tight to the elements.

I want to epoxy the floor, for aesthetics only. Issue is there is no drain in the shed, and has door thresholds where I'm unable to rinse any etch agent out of the shed. What are my options?

Sand, Scrub, vacuum up and epoxy?
Grind, vacuum, epoxy?
Shop vac up the water? I'd think the acid would kill my shop vac
Live with it?

 

[LegacyIndustrial]

Mop and mop-bucket.
It's done like this regularly.

Of course grinding is always better.

 

[LXCam]

I'd grind and vacuum. That's a small area, a 9" diamond cup stone with a vacuum attachment will make short work of it.

 

[musgofasta]

Thanks so much - did not think Mop would hold up to the chemicals but will have a go at it. I will plan on trashing it when finished with the shed...

Concrete is already close to broom-finish roughness, so unsure it Grinding would be best given its current condition.

 

[Armorpoxy]

We have lots of customers who prep using water/TSP combo and it works just fine. This is normally done in basements where acid etching would not be the best idea.

We also sell a special bonding primer that uses nanotechnology and will stick fine to your floor by just damp mopping, it's called Flash Bond Primer.

 

[musgofasta]

Etching, then Mopping (I think) was a success last night. I used the Citric Acid that came in my Rustoleum kit. This kit should be fine for the shed, unsure if I would use in a real garage floor setting.

I will find out when I get home and see the result.

 

[pima67]

When I did mine I used a wet/dry vac to **** up the acid etch and subsequent rinses. Did a couple of rinses with a bit of scrubbing in between to ensure I got all the bits up. I used a garden pump sprayer to spread the acid mix and the rinse water not a garden hose.