MrStrangeBrew

Recipes 

so i finally finished cleaning up all the slag that was all over the inside of my keggle from being cut with plasma cutter. i spent a few days cleaning and grinding and scrubbing wit BKF and letting it sit on it over night to treat the steel. now that i finished that apparently the keggle wasnt done with me yet. now im getting rust around where the cut was. ive scrubbed it a few times with BKF and grinded it down with sanding discs. and let the BKf sit on it over nite and im still getting rust. do i need to cut it off? keep grinding? shoot myself in the head? help meeeeeeeeeee

Bachhus

Recipes 

Did you use a new cutting wheel and grinding wheel/disk on this? If you used one that you had grinded regular steel with you may have transfered that steel onto/into the stainless which is now rusting on you. I would switch out to a new sanding wheel to start. Not sure how to get rid of whats rusting now though.

MrStrangeBrew

Recipes 

yeah i used new ones. well even if steel is embedded shouldnt i be able togrind it out? maybe it was heat from plasma cutter?

dmfa200

Recipes 

Scrub it with scotch brite and wipe it with clean water. I mean the abrasive type(3M brand), not the kitchen scotch brite pads.
You'll get rid of it. Just may take a few scrubbings.

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I don't know what you said, but your wrong.

trigger

Recipes 

Yep, just keep scrubbing it like dmfa said. I had some spots on mine when they were new, and after a few brew/cleaning routines with a scrubby they haven't come back. If you need them gone now you could get some acid #5 (I think) from five-star and soak with that. I'm pretty sure that's the acid cleaner that re-passivates.

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The power to tax, once conceded, has no limits; it contains until it destroys. I was not joking when I told them to dig into their own pouches. It may not be possible to do away with government — sometimes I think that government is an inescapable disease of human beings. But it may be possible to keep it small and starved and inoffensive — and can you think of a better way than by requiring the governors themselves to pay the costs of their antisocial hobby?

R. A. Heinlein

mmurray

Recipes 

Yep, It's just on the surface... keep going and you'll get rid of it.

__________________
“God bless Homebrewing Beer. There are many things a man can do with his time. And this, is better than those things.”

Gulf Coast Brewers League

MrStrangeBrew

Recipes 

ok cool thats what i figured. i didnt want to have to cut it off but in a previous thread i had everyone was freakin me out about rust. ill keep working at it.

audger

Recipes 

http://www.howtobrew.com/appendices/appendixB-1.html

use some barkeepers friend, or similar cleaner with oxailic acid. that will put a passive oxide layer back on the steel you ground off and prevent rusting.

MrStrangeBrew

Recipes 

yeah the problem is ive already done that twice

mmurray

Recipes 

Hit em with these again... then BKF

__________________
“God bless Homebrewing Beer. There are many things a man can do with his time. And this, is better than those things.”

Gulf Coast Brewers League