Uncolored Closed Woven Roving Glass Fabric for Wind Turbine Blades
This is a mechanically bonded, closed woven fabric made from uncolored glass fiber rovings, designed specifically for reinforcing wind turbine blade composites. It falls under HTS 7019.61.40 as it consists of closed woven rovings that are not colored and classified as 'other' non-lead crystal glass fiber fabrics. The tight weave provides strength and durability for high-stress structural applications.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If colored with pigments or dyes
Colored closed woven rovings shift to subheading 7019.62 for offtheshelf fabrics, changing duty rates due to surface treatment.
If not meeting glass wool silica content specs
Fabrics failing Chapter 70 glass wool definitions (silica <60% without qualifying oxides) classify under Chapter 68 as other panels or tiles.
If sold as woven fabric of filament yarn instead of rovings
Switch to filament-based yarns moves to 7019.40, as rovings are twisted strands while filaments are finer untwisted fibers.
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Import Tips & Compliance
• Verify the fabric is mechanically bonded and closed woven from rovings via lab testing to confirm HTS 7019.61.40 classification and avoid misclassification as open weave
• Provide mill certificates proving uncolored status and glass fiber composition exceeding 60% silica if resembling glass wool standards
Related Products under HTS 7019.61.40
White Closed Woven Glass Roving Cloth for Boat Hull Reinforcement
A naturally white, uncolored closed woven fabric from glass rovings, mechanically bonded for marine composite lamination in boat hulls. Classified in HTS 7019.61.40 for its 'other' status among uncolored closed woven roving fabrics per Chapter 70 notes on glass fibers. It offers corrosion resistance and high tensile strength for structural marine use.
Transparent Uncolored Glass Fiber Roving Weave for Aerospace Panels
Mechanically bonded closed woven fabric from uncolored continuous glass rovings, used in lightweight aerospace composite panels. HTS 7019.61.40 covers this as 'other' not colored closed woven rovings, aligning with fused silica/glass definitions in Chapter notes. Provides translucency and superior strength-to-weight for aircraft structures.
Natural Glass Roving Closed Weave Mat for Electrical Insulation
Closed woven, uncolored glass roving fabric mechanically bonded for use as electrical insulation in transformers and motors. Falls under HTS 7019.61.40 as other non-colored closed woven rovings, per glass fiber definitions excluding worked processes pre-annealing. Offers dielectric strength and thermal resistance.
Clear Closed Woven Fiberglass Roving Sheet for Sporting Goods
Uncolored, mechanically bonded closed woven sheet of glass fiber rovings for reinforcing sporting equipment like surfboards and skis. HTS 7019.61.40 applies to this 'other' category of non-colored closed woven fabrics, consistent with Chapter 70's glass wool and fiber scope. Delivers impact resistance and lightweight properties.