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.
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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
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