Glass Bottle Engobe Slip from Canada
A clay-based slip preparation used as an undercoat on glass bottles before glazing, improving adhesion and surface quality. Classified in HTS 3207.20.00.00 as an engobe (slip) for the glass industry. It is applied in liquid form and fired to create a uniform base layer.
Duty Rate — Canada → United States
14.9%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document the slip's composition and firing temperature to distinguish from general clays in Chapter 25
• Ensure invoices specify 'engobes for glass industry' to align with heading description
• Test for dispersion in nonaqueous media; if paint-like, it may be excluded per chapter notes to 3203-3206