West System Biaxial E-Glass Fabric – 17 oz., 50" x 20 yd.
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West System Biaxial E-Glass Fabric – 17 oz., 50" x 20 yd.
A high-performance 17 oz. non-woven E-glass biaxial fabric designed for structural lamination, hull reinforcement, and large-area fiberglass repair. Two layers of glass fiber are oriented at ±45° and held together with a light stitching, producing a flat, non-crimped construction that delivers superior stiffness and reduced print-through compared to traditional woven fabrics.
At 50" wide and 20 yards long, this roll provides substantial coverage for production builds, major repairs, or multi-zone reinforcement projects.
Key Features
- 17 oz. biaxial construction with ±45° fiber orientation for balanced multi-directional strength
- Non-woven, non-crimped fibers maximize stiffness and minimize print-through in finished laminates
- Light stitching holds layers in alignment without adding bulk or compromising wet-out
- 50" width accommodates wide hull panels, deck sections, and large structural components
- 20-yard roll length suits production runs and multi-repair projects
- Compatible with epoxy resin systems for marine-grade structural laminates
Common Applications
- Hull skin lamination on new builds and major repairs
- Deck reinforcement and structural tabbing
- Bulkhead and stringer reinforcement
- Large-area crack repair and structural bridging on fiberglass hulls
- High-load zones requiring multi-directional tensile strength
Recommended Epoxy Systems
Wet out with a compatible epoxy resin and hardener for a strong, durable laminate:
- West System C105A Epoxy Resin – 946 ml — Low-viscosity laminating resin for thorough wet-out
- West System C205 Hardener – 814 ml — Standard cure hardener for most laminating conditions
- West System C209SB Extra Slow Hardener – 1.24 L — Extended working time for large layups in warm conditions
Parts Desk Insights
Best Use Cases: This biaxial fabric is the right choice when a project demands structural stiffness and multi-directional load resistance — not just surface coverage. The ±45° orientation makes it particularly effective for torsional reinforcement on hulls and decks, where diagonal stress loads are highest. It outperforms plain woven cloth in stiffness-critical applications and produces a cleaner surface finish due to its non-crimped construction, reducing fairing time after lamination.
Tip: For large layups, pre-cut panels to size before mixing epoxy to minimize waste and working time pressure. Roll the fabric loosely and wet out from the center outward to avoid trapping air at the edges. Pair with the West System 733W Fiberglass Reinforcing Tape for seam and corner reinforcement alongside this fabric in the same build.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.