Corrosion Test – Hoppes Synthetic Vs Hoppe’s Black Oil

Hoppe’s makes some really awesome gun maintenance products and Hoppe’s No 9 Black High Performance Precision Oil is one of their newest.

I was amidst a series of gun oil corrosion tests, so I thought I would test the new Black Precision Oil against their awesome Synthetic Blend Gun Oil.

My corrosion test is very simple. I use 2 steel plates and clean them thoroughly with gun cleaner and then apply a gun oil. I leave the treated metal outside in the elements and spray them daily with ordinary water. I monitor them daily to see how long the oil protects the metal from rust.

Let’s take a look at the corrosion test setup.

Here’s the setup…2 bare steel plates, 2 gun oils, water spray bottle, gun cleaner and gun cleaning patches.

Here are the 2 gun oils that I’m testing against each other. Hoppe’s No 9 Synthetic Blend and Hoppe’s No 9 Black High Performance Precision Oil.

2 bare metal plates ready for oil application. I’ll put about 2 drops on each plate and spread it evenly with some cleaning patches.

Here’s the 2 gun oils I’m testing.

2 drops on each steel plate.

The oils have been spread over the surface of the steel. Now the test plates are ready for a good water spray.

It’s hard to see the water beads. The Hoppe’s No 9 Synthetic Blend had a much better water bead than the No 9 Black oil. Now we’ll see how long the metal protection lasts.

Gun Oil Corrosion Test – 3 days

The one on the right is the Hoppe’s No 9 Synthetic Blend and the one on the left is the new Black HP Precision Oil. Let’s take a closer look.

Hoppe’s No 9 Black HP Precision Oil after 3 days with daily water spray. There is some rusting in spots.

Hoppe’s No 9 Synthetic Blend Gun Oil after 3 days with daily water spray. There is a lot of rust. This gun oil would not be a best choice for corrosion protection but it is a very good lubricant.