West System 72720 Biaxial Fiberglass Tape 4" x 20 Yards

The West System 72720 is a 15 oz. non-woven E-glass biaxial fabric tape measuring 4 inches wide by 20 yards long. This high-performance reinforcement material features two layers of fiberglass oriented at ±45 degrees, held together with light stitching for superior strength and conformability.

Key Features:

• Biaxial construction with flat, non-crimped fibers for reduced print-through and higher stiffness compared to woven fabrics
• ±45-degree fiber orientation provides excellent shear strength and impact resistance
• Non-woven construction allows the tape to conform easily to curves and complex shapes
• Light stitching holds the layers together without adding bulk or weight
• 15 oz. per square yard weight provides robust reinforcement without excessive thickness

This biaxial glass tape is ideal for structural repairs, tabbing joints, reinforcing high-stress areas, and laminating applications where multidirectional strength is required. The ±45-degree fiber orientation makes it particularly effective for applications requiring torsional stiffness and shear strength. Works with epoxy, polyester, and vinylester resin systems.