Best Protective Coating for frames and under body?

[Chevynut73]

Would like to clean and coat the surface rust from under the C10.

What have y'all used and liked?

Thanks

[Swampyankee74]

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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[JohnnyPopper]

I used this stuff.

Sprays on nice and uniform, rubberized too.

[zieg85]

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

[JohnnyPopper]

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.

[Swampyankee74]

I got to try this molasses trick. Can you keep the mixture around for a while or does it go moldy?

[JohnnyPopper]

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...

[Swampyankee74]

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.

[Captkaos]

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.

[Chevynut73]

Great information - thank y'all