Laboratory Mullite Electrical Insulators from Mexico
Laboratory mullite electrical insulators are standoffs and tubes made from mullite ceramic (3Al2O3·2SiO2) for use in high-voltage testing equipment and spark testers. They offer excellent arc resistance and machinability. These insulators are classified under tariff item 8546.20.00 as ceramic electrical insulators.
Duty Rate — Mexico → Canada
0%
Import Tips
• Provide technical datasheets showing the mullite composition and electrical properties to support the classification
• If the insulators are used in laboratory equipment, ensure they are not classified as parts of measuring instruments under Chapter 90
• Keep records of the end-use to demonstrate they are electrical insulators