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POR15 is your friend... Posted by Snowmobile [Email]  (#686)  [Profile/Gallery]
(more from Snowmobile) on Tue, 13 Oct 2015 18:03:03
In Reply to: Rust on the doglegs., 02 Saab, Mon, 12 Oct 2015 08:04:49 Members do not see ads below this line. - Help Keep This Site Online - Signup |
remove trim, clean, sand/wirebrush etc. The rust will extend further in there than is visible on the outside - this is a 3D area and not just 1 surface. One of mine had a 1/4" diameter hole on the fender surface, in spite of it looking like no more than a small bubble of rust from the outside!
One cool trick with por15 if you have a small hole - after removing loose rust, marine clean, etc, paint por15 on the surface and stick a piece of fibreglass cloth in the paint - then paint over the cloth with POR15... it will harden just like using fibreglass resin... then just a thin fill prime, paint. Don't use POR as your final outside coat.
I've used other rust preventative primers, and POR is 100x better. The only thing is get a small can - the stuff is expensive and once it is opened, any moisture that gets in will affect it. Interestingly for us Canucks, Canadian tire now seems to carry POR15! but only the 1 quart size which is really too big (and the marine clean etc)... The little cans are the best.
I should post pics of my repair. It has held up pretty well over 2-3 years now. It is key to clean out the area shown in the photo below. I was spraying rust check in there but enough road grime (salt/sand) got in there, it caused havoc. The dogleg rusts from the inside out!
One other trick if yours is so far gone with holes etc and you just want to get a year or 2: spray mono foam into the cavity to fill it and halt the moisture access to that part. Then POR some fibreglass cloth over it to strenthen and give a hard surface for paint. I did the 5 years ago on our c900 winter beater fender that was shot, and it is still going strong! I live in about the worst saltbelt location imaginable - lots of snow, with massive amounts of regularly applied salt to melt it as fast as possible!
good luck,
, Tue, 13 Oct 2015 18:03:03 <-- Viewing This Message
, Mon, 12 Oct 2015 11:18:36
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