Author Topic: Best Protective Coating for frames and under body?  (Read 2290 times)

Offline Chevynut73

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Best Protective Coating for frames and under body?
« on: March 31, 2023, 04:52:43 PM »
Would like to clean and coat the surface rust from under the C10.

What have y'all used and liked?

Thanks
'73 Chevy C10, 350, TH350, was a long Fleetside, now she's a short Stepper that's under construction (been in the Family since 1972).

Would rather push a CHEVY than drive a Furd

Offline Swampyankee74

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Re: Best Protective Coating for frames and under body?
« Reply #1 on: March 31, 2023, 05:48:20 PM »
I used chasis saver on a blasted frame. Truck hasn't been on the road since, but it's on there like a rock, smash it with a hammer,  dig into with a wrench, it doesn't come off. Think I still have some on my skin from 3 months ago. So far very happy-just my uninformed opinion...

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Offline JohnnyPopper

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Re: Best Protective Coating for frames and under body?
« Reply #2 on: March 31, 2023, 10:07:09 PM »
I used this stuff.

Sprays on nice and uniform, rubberized too.
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline zieg85

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Re: Best Protective Coating for frames and under body?
« Reply #3 on: April 01, 2023, 02:13:44 PM »
It all depends on your surface prep.  Good paint over so-so prep is worse than bare.  The coating locks tightly together and moisture gets underneath and rust forms.  My $.02
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline JohnnyPopper

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Re: Best Protective Coating for frames and under body?
« Reply #4 on: April 01, 2023, 07:47:48 PM »
I soaked all the front end components in a molasses water 1:9 mixture in a 44 gallon trash can.

They came out as bare metal. Rinsed off with water, let dry and sprayed them with a couple of coats.

Some parts that were really coated with gunk took longer than others.
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline Swampyankee74

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Re: Best Protective Coating for frames and under body?
« Reply #5 on: April 01, 2023, 08:32:50 PM »
I got to try this molasses trick. Can you keep the mixture around for a while or does it go moldy?

Offline JohnnyPopper

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Re: Best Protective Coating for frames and under body?
« Reply #6 on: April 02, 2023, 06:35:53 PM »
You can keep it, it doesn't lose it strength.

Keep it covered though with the trash can lid.

B/C after you use for a while it smells like dirty gym socks.

Oh, and don't leave any parts longer than needed to clean them, B/C it will continue to eat the softer elements of ferrous metal, and softer things like sheet metal. Ask me how I know... ::)
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline Swampyankee74

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Re: Best Protective Coating for frames and under body?
« Reply #7 on: April 02, 2023, 06:48:12 PM »
I like what I hear! In gonna set up what I call a brew pot and try it out. Gonna try it with parts I don't need. But looking at your pics it works wonders.

Offline Captkaos

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Re: Best Protective Coating for frames and under body?
« Reply #8 on: April 05, 2023, 10:14:15 AM »
I have used POR15 and Chassis Saver with good results for frames.
When it comes to underbody, on the outside I have primer sealed them and used rubber coating or raptor liner type spray on material.

Offline Chevynut73

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Re: Best Protective Coating for frames and under body?
« Reply #9 on: April 07, 2023, 12:01:10 PM »
Great information - thank y'all  :)
'73 Chevy C10, 350, TH350, was a long Fleetside, now she's a short Stepper that's under construction (been in the Family since 1972).

Would rather push a CHEVY than drive a Furd