Compressed Cork Thermal Break Panels

Panels from compressed cork used as thermal breaks in steel structures to prevent heat bridging. HTS 4504.10.20.00 applies as coated or uncoated insulation plates of agglomerated compressed cork. Essential for energy-efficient building envelopes.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7308.90.95Same rate: 35%

If when supplied as part of steel structure assemblies

Structures with integral insulation classified by steel components in Chapter 73.

4418Lower: 13.2% vs 35%

If wood-based with cork veneer

Builders' joinery of wood with cork facing follows wood classification.

8544.60.60Higher: 38.2% vs 35%

If conductive insulation for electrical enclosures

Insulated windings or cores shift to Chapter 85 electrical machinery.

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Import Tips & Compliance

Include engineering specs showing thermal conductivity values below 0.05 W/mK for classification support

Ensure panels are not pre-drilled or assembled; parts may classify under 4504.90 as articles

Comply with building code certifications for target markets to facilitate entry

Related Products under HTS 4504.10.20.00

Compressed Cork Insulation Sheets

These are rigid sheets made from compressed agglomerated cork particles, often used for thermal and acoustic insulation in walls and roofs. They fall under HTS 4504.10.20.00 as they are specifically classified as insulation products from compressed cork, coated or not. The material's natural properties provide excellent sound absorption and heat resistance.

Coated Compressed Cork Wall Insulation Panels

Pre-cut panels of compressed cork with a protective coating, ideal for interior wall insulation in residential and commercial buildings. Classified under HTS 4504.10.20.00 due to their compressed cork composition and primary function as thermal insulation. The coating enhances moisture resistance without altering the base classification.

Uncoated Compressed Cork Acoustic Insulation Boards

Dense boards manufactured from compressed cork granules for superior soundproofing in studios and theaters. They qualify for HTS 4504.10.20.00 as uncoated insulation made from agglomerated compressed cork. Their porous structure effectively dampens noise vibrations.

Compressed Cork Roof Insulation Strips

Narrow strips of compressed agglomerated cork designed for under-roof thermal insulation in construction. Falls under HTS 4504.10.20.00 as strip-form insulation from compressed cork, suitable for both coated and uncoated variants. Provides natural fire resistance and sustainability.

Fire-Resistant Coated Cork Insulation Disks

Solid cylindrical disks of compressed cork with intumescent coating for pipe insulation and fire barriers. Classified in HTS 4504.10.20.00 as insulation disks explicitly covered under compressed cork provisions. The coating activates in high heat for added safety.

Eco-Friendly Compressed Cork Floor Underlayment

Thin sheets of compressed cork serving as sound and thermal underlayment beneath flooring. Falls under HTS 4504.10.20.00 for its insulation properties from agglomerated compressed cork, whether coated or not. Popular for green building certifications.