Re: Repairing Spider Cracks
Get a copy of the video Cosmetic Gelcoat & Fiberglass Repair Vol 2 - great tape <br /><br />Here is a basic overview<br /><br />Grind out the stress crack (he shows you how and how to know you've got it all - he uses an electric die grinder with a carbide bit but also shows you how to do it with a drill) According to Jerry (the guy) every stress crack extends down into the fiberglass and you have to make sure you've got it all or it will return (he uses acetone and any white spots are areas that have to be removed)<br /><br />Fill with a milled fiber based filler or, in some cases, a cats hair based filler (depends on size and depth)<br /><br />When it begins to harden you use a cheese grater (stanley sureform) to take down the high spots, shape it, etc. If you wait till it hardens you'll be sanding forever because it gets as hard as a rock.<br /><br />Use faring compound to get finished, smooth repair. sand, then spray with gelcoat to finish (use a cheapo airbrush - it works great). Spray with PVA so the gelcoat will cure (assuming you are using wax free gelcoat)<br /><br />Wet sand and buff...
