A while back I powerwashed my 4Runner frame, then applied Rustoleum rust primer then a topcoat of black gloss Rustoleum. That worked OK, but the rust eventually worked its way out the holes in the frame and spread from there. I'll be replacing the frame on my HJ60 in a couple weeks hopefully, and I'm getting a decent frame with, but it will almost certainly have surface rust. After spending a couple of hours reading up on this, here's a couple options:
Prep work
I will be using a 3M flapper wheel with and power-washing the frame. I am unsure of how to deal with scale rust inside the frame rails.
Rust Bullet
Pros:
POR-15
Pros
Zero Rust
Pros:
Prep work
I will be using a 3M flapper wheel with and power-washing the frame. I am unsure of how to deal with scale rust inside the frame rails.
Rust Bullet
Pros:
- little prep work- remove scale rust, apply rust bullet
- does not accept topcoat well
- expensive
POR-15
Pros
- ???
- lots of bad reviews
Zero Rust
Pros:
- Cheaper
- used by reputatble companies such as CCOT (Cool Cruiser Of Texas)
- hold up well in indepenant tests, according to their website
- Requires frame prep, ie: rust converter
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