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Rob Petrie E395 · 12-15-2014, 04:05 PM

Here is some info on it that I got from another site. Might save you some hassle down the road to know about this.

4th gen F-body sail panels are adhered to the body of the car using glue (urethane). The bubbling sail panel paint issue is due to this glue seeping through the panel and causing bubbles along the surface of the panel. The reason for the seepage seems to be due to the lack of paint/epoxy primer on the underside of the panel, a process change which started at GM on very late '98 cars (05/98 and later are at risk) and affected all '99+ models. This allows the glue to directly contact the panel and seep into it over time. Heat/UV exposure seems to bring the glue through the panel once it's begun to seep.

Sanding/painting/bondo'ing/etc. will not fix this condition. Complete panel replacement is the only permanent fix. Once the glue has eaten into the panel, there is no way to correct this from the top side. The problem lies underneath, and nothing you do on top is going to change this. The only other option would be to never drive the car in sunlight.

12-15-2014, 04:05 PM	#2
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,093 Likes: 162 Liked 220 Times in 79 Posts	Re: body in white question Here is some info on it that I got from another site. Might save you some hassle down the road to know about this. 4th gen F-body sail panels are adhered to the body of the car using glue (urethane). The bubbling sail panel paint issue is due to this glue seeping through the panel and causing bubbles along the surface of the panel. The reason for the seepage seems to be due to the lack of paint/epoxy primer on the underside of the panel, a process change which started at GM on very late '98 cars (05/98 and later are at risk) and affected all '99+ models. This allows the glue to directly contact the panel and seep into it over time. Heat/UV exposure seems to bring the glue through the panel once it's begun to seep. Sanding/painting/bondo'ing/etc. will not fix this condition. Complete panel replacement is the only permanent fix. Once the glue has eaten into the panel, there is no way to correct this from the top side. The problem lies underneath, and nothing you do on top is going to change this. The only other option would be to never drive the car in sunlight.