Borosilicate Glass Flakes for Engobe Slips from Mexico
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.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• 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