Silica-Based Refractory Mortar from United States
Silica-based refractory mortar is a mix of ground silica, clay binders, and additives, used for joining refractory bricks in high-heat environments like coke ovens. It is classified under 3816.00.00 as a refractory composition, withstanding temperatures and chemical attack in industrial furnaces.
Duty Rate — United States → Canada
PGA flags (1)Show detailsHide detailsHCConsumer Products SafetyMay be required
- HC
Consumer Products Safety · May be required · on some HTS numbers under this code
May require HC Consumer Products Safety depending on intended use (HC21) and Canadian product category (HC29, HC30, HC31, HC32, HC33, HC34, HC35, HC36, HC37); or intended use (HC22, HC23, HC24, HC26, HC27) and Canadian product category (HC37), and on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 3816000040; Equal To 3816000040. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Import Tips
• Verify the mortar does not contain separate chemically defined compounds in excess, as that could shift classification
• Keep the product dry and packaged to avoid clumping during customs inspection
• Declare the silica content accurately, as high crystalline silica may require workplace safety documentation