Silmar® brand 249A Polyester Laminating Resin. Laminating Resin is used for applying fiberglass to surfboards. Lam resin is designed to dry tacky. Can be converted into sanding (hot-coat) resin with polyester surfacing agent. Includes MEKP Catalyst hardener. Product shelf life: 1 year minimum.
Silmar resins were developed, and still are manufactured in Hawthorne, California since 1961. Silmar is the undisputed, highest-quality resin available to the industry.