Silmar® 249A Polyester Laminating Resin

2026-03-13T01:48:21-07:00

Type: Laminating Polyester Resin
Price: 16.00 - 195.00 (4 variants)

Step up to the undisputed industry standard with Silmar® 249A Polyester Laminating Resin. Manufactured in Hawthorne, California since 1961, Silmar remains the highest-quality resin available to surfboard builders worldwide, known for its superior clarity, ease of use, and consistent results.

Specifically designed for laminating fiberglass, this resin is formulated to cure tacky, ensuring a perfect chemical bond between layers. For those needing a finish coat, simply add a polyester surfacing agent (wax solution) to convert it into a sanding/hot-coat resin.

Product Details:

Pint or Quart: Includes 0.5 oz MEKP hardener.

Gallon or Pail: Does not include MEKP (sold separately).

Shelf Life: Guaranteed 1-year minimum shelf life.

Quality: Professional-grade UV stable formula.

MEKP Usage Chart

Achieving the perfect kick-time is critical. Use the chart below to determine the correct MEKP ratio for your environment.

Pro Tip: Always stir your MEKP thoroughly but gently to avoid introducing excess air bubbles into your lamination.