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Glycerine antirust treatment
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This is the time of year I do my antirust treatment on my vehicles. I usually use a scented antirust gel-type product which runs about $20- $25 for 4L. Then I had an idea. Why not try spraying with hot glycerine? So I did. As long as the glcerine was hot, my spray gun didn't mind. Adhesion was instantaneous, hardly any dripping.


1991 GMC 6.2L Rally STX and 1997 Jetta
 
Registered: October 06, 2005Reply With QuoteReport This Post
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Any longterm comments?

Glycerin is very hygroscopic... I.E. it likes to trap water. Plus, typically raw glycerin contains salts and has a relatively high pH.

So personally I'd think that it would be a poor choice as a rust inhibitor.

Some of my worst places of rust & paint deterioration have been around brake fluid leaks... also a hygroscopic fluid.

But, there is no substitute for empirical studies, especially on someone else's vehicle.
 
Location: Oregon | Registered: October 17, 2007Reply With QuoteReport This Post
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Keelec's right. Glycerol attracts dampness, even moreso with its salt content. You can find out easily enough by coating a strip of mild steel in glycerol and leaving it in your shed. You can try used engine oil - that's been used with success.
 
Location: Scotland | Registered: March 19, 2006Reply With QuoteReport This Post
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