2004 6.0 NV4500 Tahoe

pwtr02ss

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What caused the bubbling.
The bubbling was the reason for painting the hood in the first place. All the ss cars are doing it where the bottom and top are glued. I thought the feather fill would bond to it and we'd have no issues. After grinding down into the smc, I found bubbles in the smc itself. Once I got all of that out, we put resin and mat in there and let it cure for a week. That seems to have worked as it didn't bubble the second time.
 

George B

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The bubbling was the reason for painting the hood in the first place. All the ss cars are doing it where the bottom and top are glued. I thought the feather fill would bond to it and we'd have no issues. After grinding down into the smc, I found bubbles in the smc itself. Once I got all of that out, we put resin and mat in there and let it cure for a week. That seems to have worked as it didn't bubble the second time.
Forgive my ignorance. Is that not a steel hood?
 

pwtr02ss

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Forgive my ignorance. Is that not a steel hood?
No, they are smc. Sheet modeled composite. It's very similar to fiberglass but the release agent is in the smc itself vs sprayed on. You have to use smc compliant materials when working with it. The only thing steel on the whole car is the quarters. The rest is plastic or smc. They started using on the corvettes in the early 80s instead of fiberglass
 

randeez

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No, they are smc. Sheet modeled composite. It's very similar to fiberglass but the release agent is in the smc itself vs sprayed on. You have to use smc compliant materials when working with it. The only thing steel on the whole car is the quarters. The rest is plastic or smc. They started using on the corvettes in the early 80s instead of fiberglass
you make my smc bubble :gayfight:
 

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