Using a metal watering can for acid etching??

[tonyvlx]

Hi i attempted to acid etch my concrete today using the supplied acid powder that comes in the EC kit. I followed mixing instructions. it never "fizzed' or seemed to do anything to the concrete. I used a metal watering can to spread the etching. Could the metal made watering can had a effect on the acid???
Thanks

 

[LegacyIndustrial]

I think Christine needs to answer this one.

 

[Falcon67]

I used a 5 gallon bucket of solution and a big fuzzy paint roller. But not the EC stuff. I did try a gallon of some "safe" etch - it was useless, like bio-friendly brake cleaner. After that I got real with the stuff that will burn your lungs and cure your athletes foot in seconds.