Fibral Fiberglass Filler takes the place of short and long strand products. It's ideal for bridging holes while providing a tough, resistant GRP coating. Product Features:Apply directly to bare steel, SMC, fiberglass, aluminum, rigid plastic, and fully cured paint surfaces Smooth spreading and easy to applyCan be shaped and sanded, once curedCompletely waterproofCan be sanded and directly top coated in 20 minutes
