Kieselguhr Insulation Filler from Mexico
Powdered kieselguhr for thermal insulation in construction, with ultra-low density under 1. As a siliceous fossil earth, it is covered by this tariff item when not mixed with binders or other materials.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is not mixed with cement, gypsum, or other binders, which would move it to Chapter 68 or 38
• Provide documentation of the product's specific gravity
• If the product is sold as a construction material, check for building code compliance