Exfoliated Vermiculite Loose Fill
Expanded vermiculite granules used as lightweight loose-fill insulation for attics and masonry walls, providing fire resistance and thermal protection. Classified under HTS 6806.90.00.90 as an expanded mineral material for heat-insulating purposes, distinct from mixtures or shaped articles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in rigid panels or boards
Vermiculite formed into shaped panels becomes 'articles of mineral materials' under the panels subheading.
If unexfoliated raw vermiculite ore
Natural, non-expanded mineral earths fall under Chapter 25 as unworked mineral substances.
If chemically treated for fire retardancy
Prepared chemical binders or additives push classification to Chapter 38 as chemical preparations.
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Import Tips & Compliance
• Test for loose bulk density to distinguish from articles; bulk expanded clays/vermiculite stay in this code
• Provide origin certificates proving non-asbestos contamination to avoid Chapter 68 reclassification
• Declare particle size distribution to comply with USDA phytosanitary rules if used in horticultural mixes
Related Products under HTS 6806.90.00.90
Rock Wool Insulation Batt
A pre-cut batt made from spun rock wool fibers, bonded with resin, used for thermal and acoustic insulation in walls and attics. It falls under HTS 6806.90.00.90 as a heat-insulating and sound-absorbing article of mineral material, not classified in headings 6811, 6812, or chapter 69.
Mineral Wool Acoustic Ceiling Tile
Perforated ceiling panels made from compressed slag wool with a decorative facing, designed for sound absorption in commercial spaces. It qualifies for HTS 6806.90.00.90 as a sound-absorbing article of mineral materials, excluding those of heading 6811 or 6812.
Foamed Slag Thermal Block
Lightweight blocks produced from expanded foamed slag, used for insulated concrete forms in construction. Falls under HTS 6806.90.00.90 as an expanded mineral material article for heat-insulation, not refractory products of chapter 69.
Expanded Clay Pebbles Hydroponics
Round, lightweight expanded clay aggregate (LECA) balls used as growing medium in hydroponic systems for thermal insulation and drainage. Classified in HTS 6806.90.00.90 as expanded clays, a sound-insulating mineral material not covered by other headings.
Slag Wool Pipe Insulation
Cylindrical jackets of resin-bonded slag wool for insulating steam pipes and HVAC ducts, reducing heat loss and noise. HTS 6806.90.00.90 covers this as a heat- and sound-insulating article of mineral wool.
Vermiculite Fireproof Board
Compressed exfoliated vermiculite boards for fire-rated enclosures and safes, offering high-temperature insulation. Under HTS 6806.90.00.90 as a mixture/article of heat-insulating mineral materials.