Quartz Glass Powder for Glass Frit Production
High-purity quartz glass ground into fine flakes or granules, used in manufacturing specialty glass frit for enameling on glass substrates. Falls under HTS 3207.40.5000 as 'other glass' in granular form for the glass industry.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If natural silica sand, not fused glass
Unfused natural quartz sands are mineral products, lacking glassy structure of processed frit.
If prepared as liquid lustre
Solvent-based lustre preparations from same glass differ from dry powder form.
If for industrial chemical use, not ceramics
Silica in pure chemical form for non-ceramic applications moves to inorganic chemicals chapter.
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Import Tips & Compliance
• Provide purity analysis (SiO2 content >99%) to distinguish from common silica sand under Chapter 25
• Label as 'glass industry preparatory material' to avoid bulk silica classification
• Ensure particle size specs match end-use in frit melting processes
Related Products under HTS 3207.40.50.00
Lead-Free Glass Frit for Ceramic Glazes
Finely powdered glass material used as a base for creating durable glazes on ceramic tiles and pottery. It melts during firing to form a smooth, glassy surface, classified under HTS 3207.40.5000 as glass in powdered form specifically for the ceramic industry.
Borosilicate Glass Flakes for Engobe Slips
Thin borosilicate glass flakes used in preparing engobes (slips) for coating ceramic bodies before glazing. Provides opacity and adhesion, classified as glass flakes under HTS 3207.40.5000 for ceramic industry use.
Ceramic Tile Glass Granules
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Opacifying Glass Powder for Porcelain Enamels
Specialized glass powder that creates opacity in porcelain enamel coatings for appliances and sanitary ware. Disperses evenly during high-temperature firing, classified under HTS 3207.40.5000 for enamelling industry.
Fused Silica Flakes for Glass Decoration
Ultra-pure fused silica in flake form used in decorative glass frit for architectural panels and tableware. Provides crystal clarity post-firing, under HTS 3207.40.5000 but noted as specific glass form.
Zirconium-Enhanced Glass Granules for Tableware
Glass granules doped with zirconium oxide for brilliant white glazes on ceramic tableware. Enhances opacity and durability in dinnerware production, HTS 3207.40.5000 as prepared glass for ceramics.