Other
Worked mica and articles of mica, including agglomerated or reconstituted mica, whether or not on a support of paper, paperboard or other materials. > Other > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 6814.90.00
Agglomerated Mica Heating Element Plates
Agglomerated mica heating element plates are manufactured by bonding reconstituted mica with heat-resistant binders, then pressing them into flat plates. These plates are designed to support heating wires in electric heaters and toasters, where they provide electrical insulation and thermal stability. They fall under tariff item 6814.90.00 as articles of agglomerated mica, not elsewhere specified.
Agglomerated Mica Kiln Shelves
Agglomerated mica kiln shelves are large, flat panels made from reconstituted mica bonded with inorganic binders, capable of withstanding temperatures up to 1000°C. They are used in kilns to support pottery and ceramics during firing. These shelves are classified under tariff item 6814.90.00 as other articles of agglomerated mica.
Mica Electrical Insulation Sheets
Mica electrical insulation sheets are thin, flexible sheets made from worked mica, either split or cleaved, used to insulate electrical components in motors and transformers. They provide high dielectric strength and heat resistance. These sheets fall under tariff item 6814.90.00 as articles of worked mica not specified elsewhere.
Mica RF Window Disks
Mica RF window disks are circular pieces of worked mica that are transparent to radio frequencies, used in high-power RF transmitters as vacuum windows. They are made from high-quality muscovite mica, carefully cleaved and shaped. These disks are classified under tariff item 6814.90.00 as articles of worked mica.
Mica Shim Stock Sheets
Mica shim stock sheets are precision-cut sheets of worked mica used as shims for aligning machinery in precision equipment. They are made from split mica, cut to exact thicknesses for spacing and leveling. These sheets fall under tariff item 6814.90.00 as other articles of worked mica for industrial use.
Mica Vacuum Tube Spacers
Mica vacuum tube spacers are stamped washers and spacers made from worked mica, used to insulate electrodes in vacuum tubes for radios and amplifiers. They are precision-cut to fit specific tube designs and provide thermal and electrical insulation. These spacers are classified under tariff item 6814.90.00 as articles of worked mica.
Mica Window Strips for Furnaces
Mica window strips for furnaces are transparent strips of split mica used as peephole windows in high-temperature furnaces and stoves. They are cut to size and polished, offering heat resistance without melting or cracking. These strips are classified under tariff item 6814.90.00 as worked mica articles.
Phlogopite Mica Lantern Globes
Phlogopite mica lantern globes are molded globes made from phlogopite mica, which allows light transmission while resisting weather and heat. They are used in outdoor lanterns and are shaped to fit specific lamp designs. These globes are classified under tariff item 6814.90.00 as articles of worked mica.
Reconstituted Mica Gaskets and Seals
Reconstituted mica gaskets and seals are die-cut from agglomerated mica sheets, used for sealing high-pressure steam pipes and valves. They provide excellent heat resistance and compression strength. These gaskets are classified under tariff item 6814.90.00 as articles of reconstituted mica for industrial sealing.
Split Mica Capacitor Dielectrics
Split mica capacitor dielectrics are ultra-thin layers of split mica, silvered on one side, used as dielectrics in high-frequency capacitors. They are precision-cleaved to achieve consistent thickness. These dielectrics are classified under tariff item 6814.90.00 as worked mica articles before final capacitor assembly.
Split Mica Stove Doors
Split mica stove doors are pre-cut panels of split mica fitted into frames for viewing ports in wood stoves and fireplace inserts. They are transparent and heat-resistant, allowing users to see the fire. These panels are classified under tariff item 6814.90.00 as other worked mica articles for heating appliances.
Worked Muscovite Mica Condenser Foil
Worked muscovite mica condenser foil is extremely thin, cleaved muscovite mica foil (0.001-0.005mm) used for stacking in RF power capacitors. It is precision-split to achieve uniform thickness and high dielectric strength. This foil is classified under tariff item 6814.90.00 as precision worked mica for electronics.