Unvulcanized Silicone Rubber Sheets
High-temperature resistant unvulcanized silicone rubber sheets for molding into seals and gaskets. This compounded product is classified in HTS 4005.91.00.00 as unvulcanized rubber in sheet form, prior to vulcanization.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If vulcanized floor coverings or mats
Vulcanized rubber sheets for specific end uses like flooring go to 4008 subheadings.
If imported as dispersion or solution
Synthetic rubber in non-solid primary forms classifies under 4002.
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Import Tips & Compliance
• Test for vulcanization status; provide lab reports if challenged by CBP
• Avoid antioxidants or stabilizers in excess to retain raw material character
• Declare exact thickness to confirm 'sheet' vs 'plate' but both covered here
Related Products under HTS 4005.91.00.00
Unvulcanized EPDM Rubber Sheets
Flat sheets of compounded EPDM (ethylene propylene diene monomer) rubber, unvulcanized, supplied in primary form for further processing into weatherstripping and roofing membranes. This product falls under HTS 4005.91.00.00 as it is compounded rubber in sheet form, not yet vulcanized, distinguishing it from vulcanized sheets in heading 4008.
Unvulcanized Nitrile Rubber Plates
Rectangular plates of nitrile butadiene rubber (NBR) compound, unvulcanized, used in gasket production for oil-resistant applications. Classified under HTS 4005.91.00.00 for compounded unvulcanized rubber in plate form, excluding vulcanized or further worked products.
Unvulcanized SBR Rubber Strips
Narrow strips of styrene-butadiene rubber (SBR) compound, unvulcanized, in rectangular shape for tire manufacturing or conveyor belting base. HTS 4005.91.00.00 covers such unvulcanized compounded rubber strips, simply cut to rectangular shape without further working.
Unvulcanized Butyl Rubber Plates
Plates of unvulcanized butyl rubber compound for inner tube linings and roofing. Falls under HTS 4005.91.00.00 for unvulcanized compounded rubber plates in primary forms.
Unvulcanized Neoprene Rubber Strips
CR (chloroprene) rubber strips, unvulcanized, for wetsuit and hose production. HTS 4005.91.00.00 applies to these rectangular compounded strips.
Unvulcanized Natural Rubber Sheets
Compounded natural rubber sheets, unvulcanized, for balloon and glove molding. Classified in 4005.91.00.00 as primary form sheets.