Removing rust flakes from gelcoat

[HopCar]

My favorite product for this is Whink Rust Remover. You can find it in grocery stores with the laundry products. It contains hydrofluoric acid. The guys here will tell you that just getting near it will kill you but they’ve been selling it to housewives for about seventy years. Hasn’t killed one yet.

If you’re afraid of a little glass eating acid, go with the oxalic acid. It will eventually work. Look for powered wood bleach in the hardware store. I use it to treat my honeybees for mites. Doesn’t seem to bother the bees.