Convert your laminating resin into a hard-curing sanding resin with our Polyester Surfacing Agent. This essential additive is a specialized paraffin wax dissolved in styrene, designed specifically for the "hot-coat" or final coat phase of your surfboard build. During the curing process, the wax in this solution will rise or "bloom" to the surface. This creates a critical barrier between the resin and the air, allowing the resin underneath to cure completely tack-free. Without this agent, the resin remains sticky, making it impossible to sand without gumming up your sandpaper. Usage & Mixing: Standard Ratio: Add 2 oz. of Surfacing Agent per 1 Gallon of Laminating Resin. Compatibility: Works with all standard polyester resins, including Silmar and Reichhold. Key Features: Sandability: Eliminates surface tack for a clean, hard finish. Professional Results: Ensures a smooth transition from lamination to the final finish. Easy to Use: Simply stir into your resin before adding your MEKP catalyst. Pro Tip: Always shake the bottle well before use, as the paraffin wax can settle over time. If your shop is very cold, you may need to warm the bottle slightly to ensure the wax is fully dissolved before mixing.
