Archoil AR4200 CLP Corrosion Test

I have used Archoil AR4200 CLP in the past and was happy with the way it performed on my Glock 22. Let’s see how well it Protects bare metal against corrosion.

I use a simple corrosion test consisting of a piece of bare steel, gun oil or CLP, gun cleaner, cleaning patches and a water spray bottle. This is an extreme corrosion test and most firearms will never be subjected to these type conditions. But it will show what gun oil or CLP is absolutely the BEST at protected metal against corrosion..

Here’s the setup. I cleaned the steel plate with Mil-Comm MC25 gun cleaner first. It’s squeaky clean.

Here’s the high tech CLP from Archoil. It’s a super lubricant. It says “Superior Corrosion Protection” right on the bottle.

I put 2 drop of the AR4200 CLP on the metal test plate. I’ll spread it evenly with a few patches.

The steel plate is now evenly coated with Archoil CLP. You can see that it removed a small amount of dirt from the plate.

Now it’s ready for the water spray. You can see the water beaded up on the metal. Let’s take a closer look.

It certainly looks protected with a thin film. Let’s wait and see how long the protective barrier lasts. I leave the test samples oudoors where the temperature ranges from 55 – 95 degrees F. I spray the treated metal every 48 hours and stop the test when rust appears.

Day 2 – Gun Oil Corrosion Test – Archoil AR4200 CLP

Looks like rust to me. 48 hours + water is the limit for corrosion protection from Archoil AR4200 CLP.