Silmar® 249A UV Polyester Laminating Resin

Silmar® 249A UV Polyester Laminating Resin is a professional-grade surfboard laminating resin designed for fiberglass lamination where extended working time is required. This UV-cure formulation does not fully harden until exposed to sunlight, giving shapers greater control during layup and allowing for adjustments before final curing.

Once exposed to UV light, the resin cures to a tacky surface ideal for secondary bonding. Like standard laminating resins, it can also be converted into sanding (hot-coat) resin when combined with polyester surfacing agent (wax solution).

Silmar UV resins are trusted throughout the surfboard industry for their consistency, clarity, and reliable cure performance.

Manufactured in Hawthorne, California since 1961, Silmar resins have become a benchmark for high-quality polyester resin systems used by professional surfboard builders worldwide.

Features

• Premium UV-cure polyester laminating resin for surfboard construction
• Remains workable until exposed to sunlight for controlled curing
• Designed to cure tacky for strong secondary bonding
• Can be converted into sanding (hot-coat) resin with surfacing agent
• Excellent clarity and consistent performance
• Trusted by professional surfboard builders for decades
• Manufactured in California since 1961

Application Notes

UV-cure resin begins curing only when exposed to sunlight. Work should be completed in shaded conditions until final UV exposure is desired for full cure.

Shelf Life

Minimum shelf life: 1 year when stored properly.