Slag Wool Bulk Fiber
Loose slag wool fibers derived from blast furnace slag, supplied in bulk for use in insulation mixes or as filler in construction. HTS 6806.10.00 covers slag wool and similar mineral wools explicitly in bulk form.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If compressed into slabs or boards
Processed into coherent articles of mineral wools moves to 6811.81 for sound/heat-insulating shapes.
If chemically treated as a prepared binder additive
Treated mineral wools for industrial chemical use may classify under prepared substances in Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Label as 'bulk' only if not compressed into sheets; otherwise, it may be 6811
• Include safety data sheets for fiber diameter to prove non-asbestos compliance
• Check for intermixtures; if over 50% other minerals, classification may shift
Related Products under HTS 6806.10.00
Rock Wool Insulation Batt
Rock wool batts are made from spun molten rock fibers, formed into flexible sheets or rolls for thermal and acoustic insulation in buildings. Classified under HTS 6806.10.00 as rock wool in sheets or rolls, excluding finished articles of heading 6811 or 6812.
Mineral Wool Roll Insulation
Flexible rolls of intermixture slag and rock wool fibers designed for attic and wall insulation applications. Falls under 6806.10.00 for mineral wools in rolls, prior to assembly into finished panels.
Basalt Rock Wool Sheet
Sheets of basalt-based rock wool, a natural mineral fiber product used for fire-resistant insulation in HVAC systems. HTS 6806.10.00 includes all similar mineral wools in sheet form.
Acoustic Mineral Wool Roll
Rolls of high-density mineral wool optimized for sound absorption in studios and theaters, supplied in bulk rolls. Classified in 6806.10.00 as sound-insulating mineral wools in rolls.
Industrial Slag Wool Bulk
Bulk slag wool for industrial furnace linings and high-temperature insulation, intermingled with rock wool fibers. HTS 6806.10.00 for bulk mineral wools used in heat-insulating applications.
HVAC Rock Wool Roll
Rock wool rolls specifically for duct and pipe insulation in heating, ventilation, and air conditioning systems. In rolls under 6806.10.00 as basic mineral wool forms.