P-WOG
Member
Despite a thorough search I am now confused about the use of muriatic or phosphoric acid for prepping my 42 X 60 metal walled shop with power-troweled floor. I am sure this has been beat to death here. I did my 25 X 25 garage floor last year with muriatic and used Amorseal 1000 solvent epoxy coating and it came out great.
The shop floor is inside a pole barn metal building and would likely be harder to rinse thoroughly plus be harder to vent while etching. I use a respirator. Plus, I now wonder about the residual amount of muriatic remaining and impact on my tools or metal building.
I had planned to use diluted muratic acid, scrub, rinse and let dry before epoxy. After searching I am not so sure if that is the right path. Maybe I should scrub the few grease spots with muriatic and use phophoric on the whole floor? I could also just use a degreasing area on the areas with no grease spots. The floor is 8 years old and only oily in a few places. I don't want to grind or shot blast it. I am now thinking to maybe just use a chemical degreaser and call it good. It's basically a shop for auto and farm equipment.
Could someone familiar with this steer me in a better direction than I am now going? Thanks and
The shop floor is inside a pole barn metal building and would likely be harder to rinse thoroughly plus be harder to vent while etching. I use a respirator. Plus, I now wonder about the residual amount of muriatic remaining and impact on my tools or metal building.
I had planned to use diluted muratic acid, scrub, rinse and let dry before epoxy. After searching I am not so sure if that is the right path. Maybe I should scrub the few grease spots with muriatic and use phophoric on the whole floor? I could also just use a degreasing area on the areas with no grease spots. The floor is 8 years old and only oily in a few places. I don't want to grind or shot blast it. I am now thinking to maybe just use a chemical degreaser and call it good. It's basically a shop for auto and farm equipment.
Could someone familiar with this steer me in a better direction than I am now going? Thanks and

