Nitrile Foam Rubber Sheet
NBR (nitrile butadiene rubber) cellular foam sheets for oil-resistant gaskets and seals in automotive applications. Falls under 4008.19.80.00 as 'other' cellular vulcanized rubber plates not for floor coverings or celling rubber. Rectangular sheets simply surface-worked (e.g., textured).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If hard nitrile rubber
All hard rubber forms (cellular or not) consolidate under 4008.11 per tariff structure.
If rubber-plastic blend >50% plastic
Predominantly plastic cellular sheets classify in Chapter 39; rubber content determines chapter.
If made into transmission belts
Cellular rubber belting (even textile-reinforced) moves to 4010 per chapter note 9.
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Import Tips & Compliance
• Provide oil resistance certification (ASTM standards) but classify based on cellular rubber form, not end use
• Distinguish from hard rubber via durometer testing (<95 Shore A); hard rubber goes to 4008.11
• Ensure no vulcanizing agents/pigments exceed chapter note 5 limits, maintaining 'simple' sheet classification
Related Products under HTS 4008.19.80.00
Neoprene Foam Sheet
A flexible sheet made from cellular vulcanized neoprene rubber, used for gaskets, seals, and insulation in industrial applications. It falls under HTS 4008.19.80.00 as it is a plate/sheet of cellular rubber, other than hard rubber, not specifically provided for elsewhere. The cellular structure provides compressibility and buoyancy.
EVA Foam Rubber Pad
Ethylene-vinyl acetate (EVA) cellular rubber sheets cut to rectangular pad shapes for flooring, mats, and protective packaging. Classified under 4008.19.80.00 as uncut or simply cut rectangular cellular rubber sheets of vulcanized rubber. Meets chapter notes for plates/sheets as blocks of regular geometric shape.
Silicone Sponge Rubber Strip
Cellular silicone rubber strips in rectangular cross-section for thermal insulation and gasketing in HVAC systems. HTS 4008.19.80.00 covers such vulcanized cellular rubber strips simply cut to length. Excludes textile-covered belting per chapter note.
Polyurethane Foam Rubber Block
Vulcanized cellular polyurethane rubber blocks of regular rectangular shape for cutting into custom gaskets. HTS 4008.19.80.00 as cellular rubber plates/blocks, uncut or simply cut to rectangular shape per chapter note 8 definition.
CR Foam Neoprene Roll Stock
Chloroprene rubber (CR) cellular foam sheets wound into rolls, simply cut to rectangular sheets for weatherstripping. Classifies 4008.19.80.00 as vulcanized cellular rubber plates, permitting surface-working but not complex shaping.
SBR Sponge Rubber Sheet
Styrene-butadiene rubber (SBR) cellular sponge sheets for vibration damping and sound insulation. HTS 4008.19.80.00 covers such 'other' vulcanized cellular rubber plates not specified elsewhere.