Parkerizing concentrate gone bad.

specweldtom

Well-Known Member
Joined
Jun 7, 2004
Messages
1,066
Location
Texas
I had a pint bottle of manganese phosphating concentrate that apparently precipitated the manganese out. Ended up with heavy, black flakes up to dime size laying in the bottom of the plastic bottle.

Anybody else had this happen? If so, can it be put back in solution (and used)?

It was 2-3 yrs old. The company I bought it from was sold and the new people didn't have any idea what to do.

No big loss, and I got some fresh from Brownell's now, but I would salvage this if I knew how.

Tom
 

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