Silmar® 250A UV Polyester Sanding Resin

Silmar® 250A UV Polyester Sanding Resin is a professional-grade surfboard resin designed for hot coats, gloss preparation, and ding repair applications. This UV-cure sanding resin remains workable until exposed to sunlight, giving shapers and repair technicians extended working time and precise control during application.

Once exposed to UV light, the resin cures to a hard, sandable finish, making it ideal for surfboard hot coats and repair work where a smooth, durable surface is required.

Silmar UV sanding resins are widely used throughout the surfboard industry for their consistent cure, excellent sanding properties, and reliable performance in both shaping and repair environments.

Manufactured in Hawthorne, California since 1961, Silmar resins have long been regarded as one of the highest-quality polyester resin systems available to surfboard builders worldwide.

Features

• Premium UV-cure polyester sanding resin for surfboard hot coats and repairs
• Remains workable until exposed to sunlight for controlled curing
• Cures to a hard, sandable finish ideal for finishing work
• Excellent for surfboard hot coats and ding repair applications
• Consistent performance and reliable cure characteristics
• Trusted by professional surfboard builders and repair technicians
• Manufactured in California since 1961

Application Notes

UV-cure resin remains in a liquid state until exposed to sunlight. Apply in shaded conditions and expose to UV light only when ready to initiate full cure.

Shelf Life

Minimum shelf life: 1 year when stored properly.