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From: lacasse@randvax.UUCP (Mark LaCasse)
Newsgroups: net.auto.tech
Subject: Re: surface rust
Message-ID: <121@randvax.UUCP>
Date: Sat, 15-Mar-86 01:31:34 EST
Article-I.D.: randvax.121
Posted: Sat Mar 15 01:31:34 1986
Date-Received: Mon, 17-Mar-86 04:06:30 EST
References: <1600@vax3.fluke.UUCP>
Reply-To: lacasse@rand-unix.UUCP (Mark LaCasse)
Distribution: net
Organization: Rand Corp., Santa Monica
Lines: 31


I've used a product on rusty steel called "Extend" by Loctite, Inc.
It is billed as a "rust inhibitor" or "rust sealer" or such.
I didn't use it on a car, but have used it on steel outdoors
(e.g. I-Beams).  It is water base (easy to clean up and apply).
You paint it on.  You should remove lose falking rust first.  It
is almost clear, slightly pink.  That is how it dries (almost clear)
if you paint it on wood.  When painted on steel or rust, it reacts
chemically with the iron, and turns jet black.  This takes a few minutes.
In good weather, it dries in under an hour.

It isn't the strongest surface, and will last much longer if followed
up with another coating.  The simple route for this is Auto paint,
Rustoleum, or DeRusto (I used the last).  I've also tried anhydrous
polyurathane, and liked that a lot.  It is VERY hard when dry.  It
is good on steel, and about anything else too.  I think some airlines
paint their 747's with this stuff.

I've been pretty happy with the rust locking effect of the Extend, and
with the hardness of the anhydrous polyurethane.

I bought the Extend in a 1 gal. jug from an industrial distributor for
about $35/gal (ouch).  The anhydrous polyurethane is harder to find.
I bought it for about $28/gal from a manufacturer or it, Western
Specialities Coatings, in Los Angeles.

      Mark LaCasse                  qantel!hplabs!sdcrdcf!randvax!lacasse
      c/o The Rand Corporation       cbosgd!ihnp4!sdcrdcf!randvax!lacasse
      1700 Main Street              lacasse@Rand-Unix
      Santa Monica, CA 90406
	213/393-0411  ext. 7420