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Old 08-21-2018, 10:15 PM
FleetFox FleetFox is offline
232 I6
 
Join Date: Apr 04, 2018
Location: Blue Ridge Mountains
Posts: 83
Agree with 440, If you can blast it, do; if not wire wheel, cup brush, knotted on a grinder if you gots.
Start with simple green or purple power to degrease too. Takes time but you'll be far less frustrated and much happier with the finished product.

I would then hand brush this stuff on. works well, not as good as POR15 with regards to self levelling, but much less expensive:

https://www.permatex.com/products/sp...ust-treatment/

It will leave brush marks to some extent, but I love it in hidden areas. You will need to prime it within 24-48 hours. Rust Reformer from rustoleum in spray bombs works and doesn't necessarily need a top coat. The side sections were black from the factory in many FSJs anyways.

Just my 2 cents. I have an 18 yr old amateur resto done this way and the rust did not come back. Others will weigh in.
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