Marine-Tex'able Repairs

1st crack at fiberglassing. I've been following po-man's fiberglass thread/adventure and wanted to throw some pics up to see if Marine-Tex will work for these repairs. The previous patches seem solid, should I grind these back to see what's underneath? Thanks for the advice.

Marine-Tex is the legendary high-strength repair compound designed for filling, bonding and rebuilding wood, fiberglass, ceramic, glass, metal,

Marine-Tex RM301K Marine-Tex - Gray, 2 oz.

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Pettit EZ-Tex Marine Tex Epoxy Repair Compound 710010 710020 - NuWave Marine

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Marine-Tex'able Repairs

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Marine-Tex'able Repairs

Using Marine Tex to repair a motor mount

how to repair a chip in the fiberglass - Mechanical & Technical Tips - Oliver Owner Forums