My Frame (chassis) Is Going Bad.. Cover Paint Is Going Off.

[yv1650c]

Hi, i noticed that my Silverado 08 NBS has a grease like sustance covering and protetingit from oxide. I noticed about the grase was going off. And in 2 days it was a big oxide covering all frame part un uncovered by the grase.How can i solve it? wich product would be fine to apply on it? does GM sell the oem grase?thank you.

[97SierraGMC]

no gm does not sell OEM grase get it undercoated..

[yv1650c]

what is undercoated? (sorry i'm not english spoken) as i understand is like paiting it? is it hard to do?

[tobias]

no gm does not sell OEM grase get it undercoated..

 

That's like Richard Simmons calling someone gay.

 

OP, check your local Line-X or Ziebart shop and talk to them about undercoating.

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Is that like Rhino coating? Polyurea? That sounds great, but, wouldn't it trap moisture. Has anyone out there done this as undercoating? What has been your experience?

[Zembonez]

OR

 

You can powerwash it and use some spray rubberized undercoating in a can. MarHyde makes a good one. 3M isn't bad either. Try your local auto parts store for it. They should have it for about 5 dollars.

[2000DV4.8]

OR

 

You can powerwash it and use some spray rubberized undercoating in a can. MarHyde makes a good one. 3M isn't bad either. Try your local auto parts store for it. They should have it for about 5 dollars.

 

 

I've heard that stuff is also known to trap moisture. Isn't very durable either (at least in my experience).

[remington351]

I've been searching around for the GM waxy undercoat stuff as well. The closest that I have found is LPS 3 Premier Rust Inhibitor. I'm going to order a can and see how if performs.

[DamageInc]

OR

 

You can powerwash it and use some spray rubberized undercoating in a can. MarHyde makes a good one. 3M isn't bad either. Try your local auto parts store for it. They should have it for about 5 dollars.

 

 

I've heard that stuff is also known to trap moisture. Isn't very durable either (at least in my experience).

 

 

 

I used the rubber spray coating on the wheel wells of my last truck, and it held up great for 8 years. I just did it on my new one, too.

 

Whenever a chunk of the wax coating would peel off the frame on that one, I just coated the bare spots with POR-15, then a semi-gloss black paint over that. POR-15 and a rubber topcoat would probably work well too.