I've just repaired the belly band on my 77 trillium
(almost there, just a layer of resin with glass & the final coat to smooth it out, this sites been such a huge help) & while I'm at it I figured I would repair all the Fiberglass that's damaged. But when looking closer I see a lot of spider cracks in the gel coat. I'm unclear about what to do about them. My final plan is to repainted the trailer. Should I grind down the spider cracks & fill it with an auto body filler, or go further down & glass it?
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