Dolomite Ramming Clay Mix
A dry clay-based ramming mix using calcined dolomite clay for lining induction furnaces, rammed into place before firing. Classified in HTS 3816.00.20.10 as a clay refractory composition explicitly including dolomite ramming mix, excluding heading 3801 products.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing petroleum oils or bitumen
Dolomite mixes with oils/bitumen move to 3816.00.30, separate from pure clay subheading.
If sold as pre-rammed furnace linings
Other refractory articles of clay, shaped or not, are under Chapter 69 if beyond basic composition.
If unprocessed dolomite aggregate
Raw or crushed dolomite without refractory binders is limestone/dolomite in 2521.
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Import Tips & Compliance
• Provide furnace application specs and particle size distribution to prove ramming mix status
• Ensure no petroleum additives, as those may trigger 2710 classification; certify clay purity
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