Jump to content

Frame is peeling apart?

Boss2020
 Share

Recommended Posts

Boss2020 Enthusiast

Boss2020

Posted
Posted (edited)

Hi all has anyone else had this issue? Today I was going power washing and noticed this for my first time . Mind you this is after I had the truck sprayed down with Krown rustproofing.. any help would be great .everything underboady that has factory coating is now bare metal or going to be . I can peel off the coating with my fingernail...  Looks like the krown and the coating had a reaction to each other?? Truck is a 2020 TB 7000 miles . Any suggestions ? Will GM cover this ? 

A1F1080B-EE70-4B5A-B9E4-4504BAB9B3E2.jpeg

Edited by Boss2020
BigTill Enthusiast

BigTill

Posted
Posted

Spraying rustproofing over factory coating not a good idea. Should have removed the factory coat first.

Sent from my SM-G973U using Tapatalk

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

GM ain’t gonna touch that mess. Definitely looks like the Krown reacted. Factory coating ain’t the greatest but I pressure wash it all the time and never have that happen. Gonna have to take everything you can reach to bare metal and re-apply something. Hope for the best inside the frame where you can’t reach and keep it fogged with Fluid Film or something.

Boss2020 Enthusiast

Boss2020

Posted
  • Author
Posted
2 hours ago, BigTill said:

Spraying rustproofing over factory coating not a good idea. Should have removed the factory coat first.

Sent from my SM-G973U using Tapatalk
 

So the company that did this is at fault? 

BigTill Enthusiast

BigTill

Posted
Posted

They should have known better in my opinion.

Sent from my SM-G973U using Tapatalk

Crazypontiac03 Enthusiast

Crazypontiac03

Posted
Posted
20 minutes ago, Boss2020 said:

So the company that did this is at fault? 

I would say they are! They should have know better. I’d try getting them to fix this mess.


 

508gm1 Enthusiast

508gm1

Posted
Posted

For archival purposes. These pictures are of my 2107. Krown product has been applied 4 times. There is one small spot on the frame about the size of a nickle where the factory coating has come off.

 

Kind regards.

IMG_1471.JPG

IMG_1472.JPG

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

GM has used Daubert Nox-Rust frame wax since at least 2014. Seems more likely that the Krown changed, or varies by location if it’s mixed on site, or was over-applied? No clue but the GM side of things hasn’t changed.

Pinnacle Enthusiast

Pinnacle

Posted
Posted
5 hours ago, OnTheReel said:

GM has used Daubert Nox-Rust frame wax since at least 2014. Seems more likely that the Krown changed, or varies by location if it’s mixed on site, or was over-applied? No clue but the GM side of things hasn’t changed.

Thats what they use at dealerships to repair frames, did GM tell you they have used it on the frames from factory?

redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)
10 hours ago, Pinnacle said:

Thats what they use at dealerships to repair frames, did GM tell you they have used it on the frames from factory?

Frames are hung by the front and dipped in a tank of a wax product. Bolt in cross members (not wax dipped) are added later.

They've been dipped at least since Magna got the business with the hydroform frames for the start of for the GMT800 program 20 years ago.

There has been a Daubert product available for touch-ups as least that long. 

 

The coating should be smooth.

The pics in this thread appear show a 'rough' surface on the frame -- overspray from undercoater reacting with the frame coating?  

 

Since they are in the business, there is a pretty good chance Daubert supplies the factory dip product as well.

https://www.daubertchemical.com/products/corrosion-prevention/type/Hot-Melt-Wax-Coatings

Edited by redwngr
Pinnacle Enthusiast

Pinnacle

Posted
Posted
4 hours ago, redwngr said:

Frames are hung by the front and dipped in a tank of a wax product. Bolt in cross members (not wax dipped) are added later.

They've been dipped at least since Magna got the business with the hydroform frames for the start of for the GMT800 program 20 years ago.

There has been a Daubert product available for touch-ups as least that long. 

 

The coating should be smooth.

The pics in this thread appear show a 'rough' surface on the frame -- overspray from undercoater reacting with the frame coating?  

 

Since they are in the business, there is a pretty good chance Daubert supplies the factory dip product as well.

https://www.daubertchemical.com/products/corrosion-prevention/type/Hot-Melt-Wax-Coatings

Did you read what i wrote? i know how they are dipped. So you dont know if thats the actual product thats used on the entire frame you guessed, that is whats used at dealerships to repair peeling frames. Gm has never mentioned who the supplier is and i worked for them

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      I am guessing that engines of that design back then had a better ability to be abused and survive longer than a new design engine with the long timing chain and the overhead cams and phasers etc. But I would never guess that an engine could go that far and not fail spectacularly or at least die a slow death. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      In the 80's 90's I'd run Honda's 7,500 miles between changes using Red Line HP 5W20 and do it for hundreds of thousands of miles with issues. Back in the day it was an SAE 20 with the HTHS of a SAE 30 and SN add load. It was also very polar. Oxidation VOA was over 120. Besides those motors were SPFI and lean burn tech. I could have likely run it longer but never did.    We had a Toyota bought new I ran on Pennzoil's latest and greatest synthetic of the day with "Penthane". A made up word for a very low dose of PAO. Tried 7,500 mile OCI's in that Group III/VI chemistry and the rings tapped out at 90K. Rocker box wasn't as bad as the one Punch put up but it wasn't good either. Also a SPFI motor.    I'm around 3,750 across the board on these GDI monsters and the oil it tapped out by then usually on TBN/TAN crossover and color. Red Line HP Euro.    The AMSOIL SS brochures tell you to follow the OEM values for the service class but that it can be run up to 25K if monitored. I can't imagine what motor could go that distance and not tap out. I've never owned one.    Yes, I know. Lot's of people do. I'm just not going to be one of them. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I knew a guy in the early 80's that bought a new Monte Carlo and ran it a 100,000 miles without ever changing the filter or the oil. Just kept adding. It looked like that inside.     
    • whenindoubtuseahammer
      My First Project and GMC has me stumped

      By whenindoubtuseahammer · Posted

      Good evening. I was lucky enough to get passed down to me a 2007 GMC LBZ that was my great uncle's. While the underside and rockers are more or less gone I feel like with time I can restore it to working order since it only has 110,000 miles and he put nearly every option he could get without getting the new body style since he did not trust DEF. So far I have done everything I can think of but when I put the key into the ignition nothing happens. I put 2 brand new batteries in it. Cleaned the terminals. Check all the fuses and relays and they all pass with my multimeter. I know I'm missing something that I just cant think of. The only odd thing is the OBD2 port works which makes me think its not the mega fuse. Any advice would be greatly appreciated. 
    • PunchT37
      Casey from the Texas Hill Country

      By PunchT37 · Posted

      Looks nice. I still have my 2000, 1500. Bought a 2025, 1500 for retirement. Feels solid. These trucks have a bad rap on the internet. My brother has a `24 1500, 5.3 with 52,000 miles. No problems at all. Mine hasn`t either but mine`s only at 12,700 miles. Have seen some of these things with 100,000 miles with no problems.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...