Premium 4oz S-glass fiberglass cloth for high-performance surfboard laminations where strength-to-weight matters. Stronger and more impact resistant than E-glass, ideal for performance shortboards, reinforced decks, and premium builds. Drapes cleanly, wets out smoothly with epoxy, and keeps boards light and responsive. Supplied in 100 m × 1 m rolls.
Premium 4oz S-glass fiberglass cloth engineered for high-performance surfboard laminations where strength-to-weight ratio is critical. S-glass offers significantly higher tensile strength and improved impact resistance compared to standard E-glass. This makes it ideal for performance shortboards, high-stress deck areas, team boards, and riders demanding lighter yet stronger constructions. The 4oz weight keeps boards responsive and lively while maintaining structural integrity. The fabric drapes cleanly over rails and curves and wets out smoothly with epoxy resin. It can also be used with polyester systems, though S-glass is most commonly paired with epoxy for optimal performance. Typical applications include: Lightweight performance shortboards High-performance competition boards Double 4oz deck schedules Reinforced rails Carbon hybrid layups Premium custom builds Supplied in full production rolls of 100 meters x 1 meter width.
What is the difference between S-glass and E-glass?
S-glass has higher tensile strength and better impact resistance. It allows lighter laminations without sacrificing durability.
Is 4oz S-glass strong enough for surfboards?
Yes. It is commonly used for high-performance shortboards and premium builds where weight reduction is important.
Should I use epoxy with S-glass?
Yes. S-glass performs best with epoxy resin systems, delivering superior bonding and strength.
Is S-glass worth the higher price?
For performance boards and demanding riders, yes. It provides improved strength-to-weight ratio and durability.
Can I combine S-glass with carbon fiber?
Yes. It is often used in hybrid layups with carbon or Innegra for advanced constructions.
Lanka Shapes is Sri Lanka’s trusted source for surfboard materials, supplying premium fiberglass cloth, resins, blanks, and shaping supplies built for performance and reliability. Our carefully selected range supports shapers, workshops, and DIY builders with consistent quality and practical solutions. With local stock in Ahangama and fast delivery across Sri Lanka, Lanka Shapes helps you build stronger, better boards.
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