I recently purchased my Boxster and it appears that the previous owner had repaired a chip in the windshield and before it had fully cured turned on the wipers. There is now a streak across the windshield that I have-not been able to clean. Any thoughts on how that can be removed? Solvent? Can it be buffed out?
Have you tried using a razor blade? I would use some soapy water as a lubricant and see that takes it off, I would be very careful about using any heavy duty solvents near your paint, and buffing glass takes forever. Good luck!
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1999 Ocean Blue Metallic Boxster - blueboxster.com
I have used Mothers Water Spot Remover and been very pleased with the outcome. A brand new single edge razor to shave the high spots followed with polishing compound should do the trick.