Fine Ground Quartz Glass Powder
Ultra-fine powder from synthetic quartz glass, pulverized for precision ceramic coatings and glass frits. Under HTS 3207.40.10.00 as ground glass for the glass industry, excluded from chemical compounds per chapter notes. Ideal for high-purity applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used as inorganic luminophore
Specialized luminescent preparations are separate per chapter exclusions.
If formed into refractory bricks
Refractory ceramic goods containing glass are Chapter 69.
If separate silicon dioxide chemical
Chapter notes exclude chemically defined compounds from Chapter 32.
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Import Tips & Compliance
• Include spectrographic analysis proving glass form over pure silica compound
• Use nitrogen-purged packaging for purity-sensitive imports
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