Why do some finishes rust so easily?

[brickeyee]

Are your desiccant packs dry? If not they can be refreshed in a microwave oven.

A regular oven works far more effectively.

It takes time for the absorbed moisture to become vapor and dissipate.


Golden Rods and other heaters do not actually remove humidity, but heat the volume slightly lowering the relative humidity and preventing condensation from temperature swings.

Desiccants actually lower the amount of water in the enclosure by absorbing moisture, but have a limited capacity before they must be heated to drive off the absorbed moisture.

 

[HOWARD J]

I use a rust stop called " barricade" by Birchwood-Casey.
Some guns in the safe 2 years--NO RUST

I did have a Remington 700--I had to recoat it every 6 months as it formed a thin coat of surface rust--this rust did not damage the metal.

 

[Shadow 7D]

Brickeye nailed it
A golden rod shouldn't damage wood by drying it out, just keep the relative humidity uniformly low and constant. Where a desiccant pack actually removes it.

 

[JustinJ]

Sucks to hear about the SR9 but not surprising about the 870. Mine did the same.

I've been happy with Birchwood Cassey Barricade and it has some good studies behind it.

 

[NMGonzo]

I hate rust so much that my carry guns are stainless and the humidity where I live is 3%

 

[AlexanderA]

It's not the finish that promotes rust as much as it is the composition of the steel. Ironically, steels that will rust easily will also take finishes like bluing (and even cold bluing) more easily.

Bluing doesn't prevent rust (Parkerizing is a little better in this regard). What you need is a barrier such as oil, Cosmoline, or Rig. The heavier types of greases last longer than light oils.

 

[mike288190]

mil spec clp applied with a paint brush and dont get handsy with it... for steel occasionally polish with a rag and oxpho blue... keeps my 870 rust free

 

[natman]

WD-40 is NOT a protectant, it's a WATER DISPLACER

it dries quickly into a gummy mess, it's MUCH better to use something that PROTECTS the metal, stuff like EZ-ox or even MOTOR oil, it's designed to absorb free radicals and prevent oxidation. Wonder if that means Wheat Germ oil would be good.

Gee, I hate to intrude with the facts, but:

http://www.brownells.com/.aspx/lid=...nic__Knowing_the_Limits_of_Rust_Preventatives