Glass fibers in bulk
Glass fibers (including glass wool) and articles thereof (for example, yarn, rovings, woven fabrics): > Other: > Other > Glass fibers in bulk
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 7019.90.51.20
E-Glass Bulk Fiber Pack
Unchopped E-glass fibers supplied in bulk form, typically used for reinforcement in composites and fiberglass manufacturing. This product falls under HTS 7019.90.51.20 as glass fibers in bulk, not processed into yarn, rovings, or fabrics. It meets the general definition of glass fibers including those with high silica content as per chapter notes.
S-Glass Continuous Filament Bulk
High-strength S-glass continuous filaments in bulk packaging for aerospace composite reinforcement. Classified under HTS 7019.90.51.20 as other glass fibers in bulk, distinct from yarns or woven forms. Includes fused silica variants per tariff schedule definitions.
C-Glass Bulk Roving Fiber
Corrosion-resistant C-glass fibers in bulk form, ideal for chemical tank linings and marine applications. This is 'other' glass fibers in bulk under HTS 7019.90.51.20, pre-processing stage before yarn formation. Excludes lead crystal or coated variants.
AR-Glass Bulk Fibers
Alkali-resistant AR-glass fibers in bulk for concrete reinforcement and geotechnical applications. Falls under HTS 7019.90.51.20 as glass fibers in bulk, meeting fused silica inclusion and excluding worked glass per chapter notes. Supplied loose for chopping or mixing.
High-Silica Glass Wool Bulk Pack
Glass wool with over 60% silica content supplied in bulk for insulation and filtration media production. Precisely matches HTS 7019.90.51.20 for bulk glass fibers including qualifying glass wool per chapter note (a). Not formed into mats or boards.
Basalt-Impregnated Glass Fiber Bulk
Hybrid glass fibers blended with basalt in bulk form for fire-resistant composites. Still classified as glass fibers in bulk under HTS 7019.90.51.20 if predominant glass composition. Excludes worked processing like cutting to shape per chapter notes.
Fused Quartz Bulk Fibers
Pure fused quartz glass fibers in bulk for high-temperature applications like fiber optics preforms. Explicitly included as 'glass' throughout tariff schedule per chapter note; bulk form fits HTS 7019.90.51.20 perfectly. Not annealed or cut to shape.
Texturizable Glass Fiber Bulk
Untextured glass fibers in bulk ready for air-jet texturing into insulation products. HTS 7019.90.51.20 covers this pre-processed bulk stage of glass fibers. Complies with non-worked status before annealing per chapter notes.
Microglass Bulk Filter Media Fiber
Fine-diameter microglass fibers in bulk for manufacturing HEPA filters and battery separators. Classifies under HTS 7019.90.51.20 as other bulk glass fibers, with silica content meeting glass wool criteria. Supplied uncompressed for custom web formation.
Chopped Strand Mat Precursor Bulk
Long-strand glass fibers in bulk serving as precursor for chopped strand mat production. HTS 7019.90.51.20 applies to this unprocessed bulk form before chopping or mat formation. Excludes any reflecting layer coatings per chapter note.