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12-21-2023, 03:21 PM
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#1 |
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Senior Member
  
Join Date: Jan 2002
Location: Burghill, Ohio 44404
Posts: 3,401
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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.
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  1972 GMC Jimmy 1/2 4X4 4wheel camper 1970 GMC Jimmy 1/2 4X4 350 1969 Chevy Blazer 1/2 4X4 307 1967 chevy LWB 3/4 396 |
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12-21-2023, 03:35 PM
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#2 |
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Senior Member
Join Date: Dec 2009
Location: TN.
Posts: 8,441
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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.
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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12-21-2023, 04:14 PM
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#3 |
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Senior Member
Join Date: Jan 2002
Location: Burghill, Ohio 44404
Posts: 3,401
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Re: Heater box rust
Trouble submerging it has the plastic for out side cover might change the color of the plastic.
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1972 GMC Jimmy 1/2 4X4 4wheel camper 1970 GMC Jimmy 1/2 4X4 350 1969 Chevy Blazer 1/2 4X4 307 1967 chevy LWB 3/4 396 |
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12-21-2023, 05:35 PM
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#4 |
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Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,138
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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.
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12-21-2023, 11:57 PM
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#5 |
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All stock and staying that way
Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,854
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Re: Heater box rust
Sandblast that part. Then use a quality self etching primer, then paint semi-gloss black.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..  1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...  2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
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12-22-2023, 01:47 AM
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#6 |
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Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,393
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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
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.  RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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12-22-2023, 05:12 AM
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#7 |
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Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,128
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Re: Heater box rust
The only real solution regardless of the question is blast the rust away.
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12-22-2023, 03:39 PM
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#8 |
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Senior Member
Join Date: Jun 2022
Location: San Ramon,CA
Posts: 608
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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
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1970 C10 Custom longbed 350/350 Code:
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12-22-2023, 06:58 PM
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#9 |
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Senior Member
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,325
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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.
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Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
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