July 2010

Anti-Rust Test: Boeshield T-9, Slide-Glide Lite Are Our Picks

Ten years later, Boeshield works as well as it ever did at keeping oxidation on metal at bay, but Slide-Glide Lite also warrants a look, our testers learned. We prefer Rangoon oil for fine guns.

In the July 2000 issue, we tested several rust-preventative compounds by preparing a bare, degreased steel sample and then anointing it with a selection of oils and other compounds that were supposed to provide protection against rust. We then left the steel sample outdoors in the rain, added some salt water to speed things up, and reported the results. The upshot of that test was that Boeshield T9 was the winner, providing essentially perfect protection against salt, rain, and odd water samples.

Reader Jeof Bean asked in February, "Can you test gun cleaning and lubricating products for what they claim, efficiency and how effective they are? I think this would be very helpful and believe that you are one of the very few trusted sources that can do it in an unbiased way." Reader Gordon Fleisher seconded that request, saying, "Itís been more than five years since you last tested those kinds of products. Since then, there has been a plethora of new products to come on the market. There is now a bewildering array of cleaning, lubricating, and rust-preventative products on the market. I believe it would be a real service to all of your readers to conduct tests on the commonly available products one sees in catalogs today."

To satisfy these inquiries, we acquired seven samples from Brownells and tested them in the same way as before, by preparing a single sample of mild steel with enough surface area to provide the same steel source for all the test fluids. The steel was ground and degreased to give a clean bare-steel surface, which was then divided into seven areas, with another three smaller areas for control. One of those smaller areas was left bare for a control, and the other two were anointed with Boeshield T9 and with Parker Haleís Rangoon oil, the winner and one of the runners-up from the earlier test.

All the compounds were put on relatively thinly. Two of them were essentially greases, and while they could be gobbed on so that nothing would get through them, that was thought to be nonproductive. Instead we made every effort to provide a light but thorough coat with each product, to keep a level playing field, as it were. We made every effort to avoid cross contamination when we anointed each area.

The steel-bar test sample was placed outdoors with the anointed areas upward to catch any rain or dew. We had light rain the first night, and in the morning there was only a light rust showing on the bare-steel control area. After two more days of relatively dry weather and no further rusting of the control sample, we sprinkled the steel with salt water. This gave us much faster results. We left the steel outdoors for well over a week before we drew our conclusions. In fact, the sample is still outdoors, continuing to provide long-term verification of the results given here.

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