Thread: Blocking my POS Gibbon body

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If you want the underside of the hood to be smooth, rough it up with 80 grit, go to your marine store and buy some West System epoxy resin and #407 filler to make a high strength fairing compound. Putty up the inside of the hood real good and sand it down just like Bondo. I'm sure you could just use Bondo, but the West System system allows you to regulate the viscosity so you can spread it on real thin to minimize sanding. It still has good density so it wont absorb all of your primer, either. Enough resin, hardener, and filler to make a quart will run you about $55. If you have any left over, this stuff can be used to wet out glass just like polyester, but is actually stronger, and it can be used as an adhesive, all you need to do is buy different thickeners/fillers to match it to your application. A big can of additive is only $8. #404 and #407 will serve your every need.