Natural Rubber Foam Insulation Strip
Cellular vulcanized natural rubber strip for thermal and acoustic insulation in HVAC systems. Fits HTS 4008.19.4000 as 'other' strip of cellular natural rubber, supplied in rectangular uncut form.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for non-cellular natural rubber strips
Solid rubber strips classified under non-cellular heading.
If cut into tubes or profiles
Profile shapes beyond simple strip move to 4009.
If mineral-based with rubber coating
Mineral construction materials take precedence over rubber classification.
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
• Include lab certification of natural rubber origin (e.g
• >50% NR content) to distinguish from synthetics
• Document that strips maintain rectangular cross-section without profile shaping for 4008 compliance
• Watch for reclassification if sold pre-cut for specific machinery as 'articles' under 4016
Related Products under HTS 4008.19.40.00
Neoprene Foam Sheet for Gaskets
A vulcanized cellular natural rubber foam sheet used for manufacturing industrial gaskets and seals. Classified under HTS 4008.19.4000 as it is a plate/sheet of cellular natural rubber, other than hard rubber, not further worked beyond rectangular shape.
Latex Foam Rubber Sheet for Mattress Padding
Vulcanized cellular natural latex foam sheets used as padding in mattresses and upholstery. HTS 4008.19.4000 covers these as plates of cellular natural rubber in rectangular bulk form.
Cellular Natural Rubber Gasket Sheet
Thick foam sheets of vulcanized natural rubber specifically for cutting industrial gaskets. Classified in 4008.19.4000 as 'other' cellular natural rubber plates not further fabricated.
Natural Rubber Foam Weatherstripping Roll
Rolled sheets of cellular vulcanized natural rubber used for door/window weatherstripping. HTS 4008.19.4000 as strip/sheet of cellular natural rubber supplied in bulk rectangular form.
Vulcanized Latex Foam Profile Strip
Cellular natural rubber foam strips with simple rectangular profile for packaging cushioning. Falls under HTS 4008.19.4000 as 'other' cellular natural rubber strip shapes.
NR Foam Anti-Vibration Sheet
Cellular natural rubber (NR) foam sheets for machinery anti-vibration mounts and pads. HTS 4008.19.4000 classification for vulcanized cellular NR plates in rectangular form.