Keeping from corrosion/ionization?

Dawico

Uncoiled
Lifetime Member
Oct 15, 2009
35,167
113
Lampasas, Texas
Some blued firearms (or parts of them) just have a crap finish and will rust quicker than those with a better finish.

In my experience once rust starts it's a never ending battle to prevent it.

Sand it down and paint it.
 

single stack

Active Member
Oct 27, 2011
721
93
FL
Exactly.
A buddies cheap Remington 870 Express had a horrible finish.
No matter what he did it would show rust after only a few days, especially the chamber.
 

G O B

School of Hard Knocks and Sharp blows
Dec 9, 2017
454
93
Hays Co.
Rust is insidious, once Fe metal has rusted, it will rust easier the next time. CLR or iron out and a brass brush to kill the rust, and boiling water to rinse. Coat with oil or wax
 

Royalecheese

New Member
Apr 6, 2017
25
13
Exactly.
A buddies cheap Remington 870 Express had a horrible finish.
No matter what he did it would show rust after only a few days, especially the chamber.
My 870 has a similar issue. I only use it for skeet, and I don’t know how it happened, but after close inspection tonight I can see small pitting in the blued area. However, the barrel is spotless. Other than the previous issues Remington has had over the years, I guess shoddy coating should be added to the mix.
 

ZX9RCAM

Over the Rainbow bridge...
TGT Supporter
Lifetime Member
May 14, 2008
47,117
113
The Woodlands, Tx.
My 870 has a similar issue. I only use it for skeet, and I don’t know how it happened, but after close inspection tonight I can see small pitting in the blued area. However, the barrel is spotless. Other than the previous issues Remington has had over the years, I guess shoddy coating should be added to the mix.
Welcome to the Forum!
 

Axxe55

Just a man, and his dogs.
Dec 15, 2019
16,665
113
In the Deep East Texas Pineywoods!
There was a period where many Remington Model 870 Express shotguns had very bad rusting issues, regardless of how well they were cleaned and oiled after cleaning, and regardless of the brand of oil used, and many would develop rust within several days after being cleaned. The higher the humidity level, the faster the rust would develop.

I think many ended up solving the issue with a complete stripping of the finish from all the metal surfaces and just starting from square one with either a good hot blueing, or some of the other finishes like CerraKote or some similar.

Honestly, I think starting over is the only solution that will completely solve the issue. Remington just didn't do something right at the factory with these shotguns for several years. Been lots of talk on many gun forums over they years on this subject.
 
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