Quote:
Originally Posted by ccracin
Kenny,
I've seen this before. It was also on a glass car that was blasted, but with plastic. The culprit was determined to be silicone from the seals in the compressor and residual oil from the compressor. And yes this system did have state of the art filtering. Turns out the glass after the pours were opened up from the blasting turned into a sponge. Solvent, a DA, time, and new Gel coat fixed the problem. Hope this helps.
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Glad someone mentioned this.. Gel Coat for glass.. a must. At the Corvette restoration shop that I work part-time at we will not paint a vette without gel coat.
As far as the blasting. You MUST clean everything. blow out all the corners and jambs extra well and of course you will clean the surface before sealing it.