4 oz 30" S-Glass (Full Roll)

The Shaper Supply 4 oz 30" S-Glass full roll is a premium reinforcement fabric designed for surfboard production and high-performance composite construction. Each full roll contains 109 yards of premium S-Glass cloth, providing an economical option for production glass shops, manufacturers, and builders who require consistent material availability.

S-Glass is manufactured using a higher-strength glass fiber than standard E-Glass, offering increased tensile strength and stiffness while maintaining a lightweight laminate. It is commonly selected for high-performance surfboards where maximizing strength-to-weight ratio is a priority.

This premium S-Glass cloth features a soft drape that conforms easily around rails and contours. It wets out cleanly with both epoxy and polyester resins, producing a clear laminate with excellent tensile strength and clean, clear laps.

The 30-inch width provides additional coverage compared to 27-inch cloth, making it a popular choice for wider shortboards, mid-lengths, and other designs where additional rail overlap is desired.

Need a smaller quantity? This cloth is also available by the yard as our 4 oz 30" S-Glass Cloth.

Ordering Information

• Price: $7.45 per yard.
• Roll Length: 109 yards.
• Comes in a plain box suitable for branding for resale.
• Ships separately from other products due to roll size.