Ground Fused Silica Powder
Finely ground fused silica powder derived from fused quartz or silica, processed into powder form for use in ceramic and glass manufacturing. It falls under HTS 3207.40.10.00 as ground or pulverized glass in the form of powder, specifically for the ceramic, enamelling, or glass industry. This preparation enhances frit mixtures and provides high thermal stability.
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 or processed into glass form
Natural silica sands are classified under Chapter 25 as natural minerals, not prepared glass powders for industrial use.
If in flake form rather than ground powder
Glass frit in flakes or granules falls under a separate subheading, distinguished by physical form.
If chemically pure silicon dioxide without glass properties
Pure chemical compounds like silica are excluded from Chapter 32 per chapter notes and go to Chapter 28.
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Import Tips & Compliance
• Verify particle size and purity certifications to confirm classification as ground glass powder, avoiding misclassification under Chapter 28 inorganic chemicals
• Include safety data sheets (SDS) for silica dust hazards and ensure packaging prevents moisture absorption during transit
Related Products under HTS 3207.40.10.00
Pulverized Soda-Lime Glass Frit
Ground soda-lime-silica glass turned into fine powder frit for flat glass enamelling and ceramic tiles. HTS 3207.40.10.00 applies to this ground glass form for ceramic and enamelling industries. It serves as a base for opaque glazes.
Enamelling Glass Powder
Pulverized specialty glass for porcelain enamelling on metal substrates, ground to micron sizes. Classified in HTS 3207.40.10.00 for ground glass used in enamelling industry. Provides adhesion and durability in coatings.
Ground Barium Glass Powder
Pulverized barium oxide-containing glass powder for ceramic opacifiers and glass frits. HTS 3207.40.10.00 for ground glass in ceramic/glass use. Imparts opacity and refractive qualities.
Ceramic Tile Frit Powder
Ground glass frit powder specifically for ceramic tile glazes, pulverized for uniform melting.
Glass Enamel Base Powder
Pulverized base glass for custom enamel mixing in glass industry.
Synthetic Glass Powder for Pottery
Ground synthetic glass powder for pottery glazes.