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Ultraspar™ 2 | Owens Corning Composites
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NEXT-LEVEL SPAR CAPS

Ultraspar™ 2 combines the higher performance of WindStrand® 4000 with the consistency of the pultrusion process, allowing efficient, cost-effective blade design and production. This leads to lighter, longer, and stronger blades that reduce the cost of wind energy.

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Specifications and Literature

Ultraspar 2 Product Data Sheet
Ultraspar 2 Product Data Sheet

Product data sheet for Ultraspar 2

| 16.7 MB
H2 Glass Sell Sheet
H2 Glass Sell Sheet

The benefits of H2 Glass

| 885 KB

Performance Attributes

PROVEN PERFORMANCE Icon

PROVEN PERFORMANCE

CONSISTENCY AND PRODUCTIVITY Icon

CONSISTENCY AND PRODUCTIVITY

RELIABLE SUPPLY Icon

RELIABLE SUPPLY

  • Proven Performance

    • 63 GPa laminate 0° tensile modulus (at 70% FVF — Fiber Volume Fraction) – true performance to enable longer, lighter blades.




    • Balances increased FVF to maintain strong fatigue performance.

  • Consistency and Productivity

    • Pultrusion delivers consistent glass content for reliable performance and eliminates on-site spar cap infusion for improved productivity.




    • Low porosity enables mechanical stability and quality consistency.




    • Double-sided PA66 peel ply cover with easy peel-off, enabling an ideal contact surface for excellent bonding properties.

  • Reliable Supply

    • Owens Corning® H2 Glass is continuously produced at scale and increasing capacity, delivering reliable product supply and consistency.

Applications

Ultraspar™ 2 is a high-performance pultruded profile custom-designed for wind blade spar caps. Ultraspar™ 2 enables blade designers to optimize the weight and maximize the length and strength of wind blades.

Technical Information

Properties

Characteristic* Test Method Strength Mean (MPA) Modulus Mean (MPA)
0° Tensile ** ISO 527-5A 1,350 63
0° Compression** ISO 527-5B 1,250 63
90° Tensile ISO 527-5 50 14
90° Compression ISO 14126 140 14
V-Notched Rail Shear ASTM D7078 55 4
Fatigue (Tension-Tension) ISO 13003 M value = 8.5 -
* Typical FVF at 70%.
** The sample piece is milled to 2 mm thick rectangle coupon for testing.
DATA SOURCE – Above typical data from third-party lab testing lab.

Availability & Packaging

This product is currently available in China. Please contact your Owens Corning representative for information in your region.
Ultraspar™ 2 is a custom-designed product requiring the profile dimensions of the specific design for a blade. Adequate time is needed for die preparation to properly produce the product.
Ultraspar™ 2 has coiled inner diameters of at least 1,500 mm and outer diameters up to 2,300 mm.

Storage

Glass fiber products should be stored in a dry area and remain in their original packaging until use. Products should be protected from the weather and other sources of water.

    Regional Availability

    Ultraspar™ 2 is available in China.

    Applications

    • Wind Energy > Spar Cap

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