Insulating Refractory Castable from United States
Lightweight castable with ceramic fiber and vermiculite for low thermal conductivity furnace backings. This is a refractory concrete other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is not a separate chemically defined compound
• Provide thermal conductivity data to support classification as insulating refractory
• Ensure the product is not mixed with foodstuffs or other nutritive substances