Heater box rust
 

What is the best paint to put on heater box blower motor was going to use POR-15 or a diferant paint that will go over rust was wearied obout the smell and fumes.

Re: Heater box rust
 

I would use Evapo-rust then you can paint it with the paint of your choice.

Link: https://www.amazon.com/Evapo-Rust-Or.../dp/B00M0TLQ66

I really like this evapo-rust , It is reusable if you can contain it.

Perfect for small parts.

With the bigger parts you lay a rag or towel over it and keep it damp.

Some of the gears I clean with it sat out for several weeks with no signs of flash rust.

Re: Heater box rust
 

Trouble submerging it has the plastic for out side cover might change the color of the plastic.

Re: Heater box rust
 

I would spot sand blast it as needed and then as said above a good spray bomb paint will be fine.

Re: Heater box rust
 

Sandblast that part. Then use a quality self etching primer, then paint semi-gloss black.

Re: Heater box rust
 

You can remove that piece from the fiberglass box if you drill the pop rivets out. The one in my Burban were rusted worse than yours so I removed it, sandblasted it followed by treating with Ospho. After I was sure the Ospho was neutralized I primed with self etching primer and painted.

Here's a link to what I did. Starting at post 1010.

http://67-72chevytrucks.com/vboard/s...698377&page=41

Re: Heater box rust
 

The only real solution regardless of the question is blast the rust away.

Re: Heater box rust
 

pretty sure none of those paints will outgas after it's flashed off and cured, but I suppose you could warm it to ~125F and bake it a little for extra cure, then give her a sniff

Re: Heater box rust
 

Mine had some rust. Not enough to disassemble it. I removed it, and painted much of its interior with master series primer and paint. The exterior sheet metal primed and painted. You may need a new flapper door, the hinges are prone to rust.