Paint chipping off over rear wheels

Technical and Repair Discussions

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Joined: Sat Jul 26, 2014 8:45 am
PostPosted: Thu Jul 30, 2020 6:33 pm
Has anyone else had issues with this. Fresh paint job and the paint on the rear section is coming off in small pieces, with lots of cracking. Never had that problem as a gen2. Dealing with it for a second time now. Thinking of doing some reinforcement under that area, with another layer of Matt and resin, and or a thin layer of foam and resin like they do in the marine industry. Also looked at thin rubber adhesive backed pieces to apply, but worry about them coming off in the heat.
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Posts: 253
Joined: Wed Nov 30, 2011 2:50 pm
Location: Augusta, GA
Chassis:
494
PostPosted: Mon Aug 03, 2020 6:39 pm
It's hard to say what caused it, without knowing what preparations you took before painting. It sounds like the paint either didn't adhere to the primer or the primer didn't adhere to the fiberglass. Do the paint chips have primer showing on the back, or is fiberglass adhered to the paint chips?
Kurt Breitinger
SEDIV #28
Chassis 494

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Posts: 6
Joined: Sat Jul 26, 2014 8:45 am
PostPosted: Wed Aug 05, 2020 12:34 pm
Hi Kurt,
The paint isn't adhering to the primer. Interestingly, as a Gen2 I never had this problem, but that may not be relevant, as the tail was repainted of course with the Gen3 conversion. Didn't happen at Daytona, but noticed it at Road America last August, which has some pretty serious curbing, which you use in places, so I felt it was a vibration issue. Had it repainted over winter and first time out at Summit Point, it started happening again. Looking at some other SRF's in the paddock, I could see where it looked like there were signs of similar cracking.

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