3M Fiberglass Liquid Hardener for Fiberglass Resin 0.74 oz. 22 ml | eBay
Bondo 32-fl oz Color-changing, Heavy Duty, Waterproof Interior/Exterior Brown Fiberglass Resin Repair in the Patching & Spackling Compound department at Lowes.com
3M Fiberglass Resin & Repair Kit, .9 Quart 422 - The Home Depot
Bondo® Fiberglass Resin Liquid Hardener | 3M United States