2019 Tahoe factory undercoating

[hcvone]

My 19' is oily, same as my Escalade's, it's a GM thing

 

[Big Mama]

My 07 is dry but it’s 12 years old. Do the new rigs come with coating? Could this tacky stuff be what the local dealer used to add to it or touch it up? The OP sounded like you can wipe it off

 

[Bob2C]

Ok, never had this new of a vehicle and like I said my 08 is dry and flaky.. curious if they have a can to buy to touch up cause my jack rubbed off a patch on the frame.

I use this for touch ups. Blends in nicely.

https://www.3m.com/3M/en_US/company...zed-Undercoating/?N=5002385+3292638249&rt=rud



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[Yukon not UConn]

Cosmoline was first developed for the military for rust prevention then began being used commercially. It's similar to what you are describing. The stuff that dries tends to flake off with age. I'd guess some of the rust preventatives are dealer applied and may vary due to location.

 

[PG01]

Frames on older ones are dipped in wax like undercoating but the wax peels on a truck in northern climates where they salt the roads. Also if frame isn’t completely clean the wax doesn’t stick prior to truck assembly or if its banged against something during assembly

 

[JC 707]

Is the rust proof coating only on front/middle of vehicle? I just took delivery of a 2019 tahoe and the frame on the inner rear upper area near bumper seems to be just sprayed white.

 

[Bob2C]

Is the rust proof coating only on front/middle of vehicle? I just took delivery of a 2019 tahoe and the frame on the inner rear upper area near bumper seems to be just sprayed white.

My 18 Tahoe with a build date of March 18 has the wax undercoating everywhere.


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[JC 707]

My 18 Tahoe with a build date of March 18 has the wax undercoating everywhere.


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I will take a photo after work and upload it, pretty darn worried now

 

[JC 707]

Does anyone have a photo they can upload of what this wax type coating looks like on their Tahoe? Thank you.

 

[Kpwweb]

Ok, never had this new of a vehicle and like I said my 08 is dry and flaky.. curious if they have a can to buy to touch up cause my jack rubbed off a patch on the frame.

Here is what was recommended in other posts by GM:

https://www.daubertchemical.com/products/corrosion-prevention/product/nox-rust-x-121b

I use it and it works quite well.