Uncolored S-Glass Woven Fabric 170 gsm
Open plain weave fabric from S-glass filaments ≤136 tex, mechanically bonded, 170 g/m² weight, width exceeding 30 cm, and not colored. Classified in HTS 7019.66.40.10 due to its lightweight specification ideal for high-strength marine and wind energy composites. The uncolored nature preserves optical clarity in resin laminates.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If weighing over 185 g/m² but under 250 g/m²
Weight threshold determines subheading; exceeds 7019.66.40 limit moves to heavier category.
If treated as composite panels rather than fabric
Impregnated or rigidified glass fabrics classify as panels in Chapter 68, not Chapter 70 textiles.
If staple fibers instead of continuous filaments
Filament vs staple fiber construction separates 7019.66 from 7019.61 subheadings.
Not sure which classification is right?
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Import Tips & Compliance
• Submit chemical composition analysis proving S-glass type and filament specs to prevent misclassification as cheaper E-glass
• Document mechanical bonding method; chemical bonded fabrics may require different declaration
• Avoid common error of declaring as 'non-woven'—this is specifically open woven fabric per heading
Related Products under HTS 7019.66.40.10
Plain Weave E-Glass Fabric 180 gsm
This is an open weave plain weave fabric made from uncolored E-glass filaments, each not exceeding 136 tex, with a width over 30 cm and weighing 180 grams per square meter. It falls under HTS 7019.66.40.10 as a mechanically bonded non-woven glass fiber fabric meeting the exact weight and weave specifications for lightweight composite reinforcement. Commonly used in aerospace and automotive laminates.
Lightweight C-Glass Plain Weave 165 gsm
Mechanically bonded plain weave open fabric of C-glass filaments max 136 tex, uncolored, 165 grams per square meter, over 30 cm wide. Meets HTS 7019.66.40.10 criteria for corrosion-resistant applications in chemical tanks and boats. Low weight ensures easy handling in layup processes.
E-Glass Filament Fabric 185 gsm Plain Weave
Borderline weight open weave fabric at exactly 185 g/m² from uncolored E-glass filaments ≤136 tex, mechanically bonded, width >30 cm. Precisely fits HTS 7019.66.40.10 for electrical insulation and lightweight structural panels. Critical weight tolerance used in circuit board prepregs.
High Purity Silica Glass Fabric 160 gsm
Plain weave mechanically bonded fabric from fused silica glass filaments ≤136 tex, uncolored, 160 g/m², width exceeding 30 cm. Classifies under HTS 7019.66.40.10 per chapter note including fused silica as glass; used in extreme temperature aerospace components. Exceptional thermal stability defines its premium application.
Composite Reinforcement Glass Cloth 175 gsm
Standard 175 gsm plain weave E-glass fabric, open structure, filaments max 136 tex, mechanically bonded without color, >30 cm wide. HTS 7019.66.40.10 classification supports its role as universal composite reinforcement in sporting goods and automotive parts. Balanced weight optimizes resin wet-out.