Just curious if anyone has seen "splotches" like this in parkerizing before. Barrel is new/old stock Colt from 2010. These lighter areas are only on the barrel extension.
I'm assuming its from oil residue prior to park?
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Just curious if anyone has seen "splotches" like this in parkerizing before. Barrel is new/old stock Colt from 2010. These lighter areas are only on the barrel extension.
I'm assuming its from oil residue prior to park?
20190414_170121.jpg
Member
Better pics. I scrubbed with acetone so it is definitely part of the finish.
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Member
Yes, all kinds of things can cause difference of color. Bottom line is it wont hurt unless it hurts you looking at it.Originally Posted by markderp
Parkerizing/phosphating is a controlled corrosion process. The mix of solution and water will change color, the temp, how long it's in the dip, how it's rinsed, dirt, finger print etc.
The worst parkerizing I have ever seen came from a big commercial finishing company. It was thick and black and rough. I think they let it cook until all of the solution evaporated away and it burned on the parts...looked like the inside of a grill after cooking 100 steaks.
Senior Member
Are you old enough to remember Carly Simon and one of her most successful songs??
Senior Member
"Nobody does it better"? Is that supposed to be a jab at Colt?
Senior Member
That honestly looks like someone did a "rag test" on the extension.
The titration may be off or the parts did not spend enough time under. Also a poor job of prepping/cleaning the material prior to going into the bath. I'd send pics to Colt (including identifying information) and a request for a new extension, not because your barrel is going to burst, but on [quality] principle.6.3.7 Adherence
Phosphate must be adherent to the steel substrate. One piece from each batch
shall be evaluated for conformance using one of the following methods:
6.3.7.1 Eraser Test:
The eraser test utilizes a common #2 pencil eraser and the operator is to
swipe the phosphate coating 3 times with moderate pressure. If the
coating is removed or transferred to the eraser the coating is not yet
adherent and must be continued.
6.3.7.2 Rag Test
Use a rag the operator is to rub the phosphate coating with moderate
pressure. If the coating is removed or transferred to the rag the coating is
not yet adherent and must be continued.
Last edited by Sry0fcr; 05-02-19 at 09:42.
Member
I googled it and I am pretty sure that song is about me.
Member
Once that barrel is installed what will it matter?
Proper Planing Prevents Piss Poor Performance.......
Member
Exactly...
Senior Member
Are you Warren Beatty?
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