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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used in glass fiber manufacturing
Glass in fibrous form for reinforcement changes to glass fibers heading.
If fused quartz or fused silica form
Specific exclusion for high-purity fused silica glass in powder/flake form.
If dispersed in retail paint medium
Glass pigments in nonaqueous paint dispersions for retail fall outside chapter exclusions.
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Import Tips & Compliance
• Include thermal expansion coefficient data matching ceramic bodies to prove specific engobe application
• Declare flake thickness (<0.1mm) typical for slip preparation to validate classification
• Avoid generic 'glass powder' labeling; specify ceramic engobe use explicitly
Related Products under HTS 3207.40.50.00
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