Product classification
HS code for Unvulcanized rubber solutions: 4005.20
Rubber, unvulcanised, compounded, solutions and dispersions other than those of item no. 4005.10.
Classification of unvulcanized rubber solutions under HS 4005.20
Unvulcanized rubber solutions and dispersions are classified under HS code 4005.20. This code is situated within heading 4005, which covers compounded, unvulcanized rubber. Unlike the solid forms (blocks or sheets), 4005.20 is reserved for rubber that has been dissolved in a solvent or dispersed in a liquid medium. These solutions are frequently used as industrial coatings, sealants, or as a base for manufacturing adhesives. The classification requires that the rubber be compounded with other substances before being liquefied. It is important to distinguish these from natural rubber latex (Chapter 4001) or simple solutions of uncompounded rubber. The presence of compounding ingredients like vulcanizing agents or plasticizers within the liquid medium is the primary reason for classification under 4005.20. The product is usually liquid or paste-like in consistency and is intended to be applied to a surface where the solvent evaporates, leaving a layer of unvulcanized rubber.
- Covers
- Compounded rubber solutions in organic solvents
- Unvulcanized rubber dispersions in water
- Rubber-based liquid sealants (unvulcanized)
- Compounded rubber pastes
- Liquid rubber compounds for dipping processes
- Also under 4005.20
- Henkel rubber adhesives
- Sika sealants
- Bostik rubber solutions
- 3M industrial rubber dispersions
Codes often confused with 4005.20
Common mistake. This code is often confused with HS code 4005.10 if the solution contains carbon black or silica; however, 4005.20 is generally the specific code for solutions regardless of fillers in many jurisdictions, though 4005.10 can take precedence if reinforcing agents are present. It is also confused with HS code 3506 (prepared glues and adhesives). If the product is specifically formulated and sold as an adhesive, 3506 is more appropriate.
Top exporters and importers of HS 400520 (the code used for unvulcanized rubber solutions), 2025
In 2025, the largest exporter of HS 400520 (the code used for unvulcanized rubber solutions) in UN Comtrade data was Germany, with 32% of world exports; the largest importer in UN Comtrade data was China, with 14% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 400520, not only unvulcanized rubber solutions.
Top exporters 2025 · share of world exports
- 1 Germany $61M 32% of world exports
- 2 South Korea $31M 16% of world exports
- 3 United States $29M 15% of world exports
World total: $191M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $26M 14% of world imports
- 2 United States $25M 14% of world imports
- 3 South Korea $17M 9.3% of world imports
World total: $185M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for unvulcanized rubber solutions
Brazil classifies unvulcanized rubber solutions under NCM 4005.20.00: HS 4005.20 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product category is subject to the EU Deforestation Regulation (EUDR). Importers must provide due diligence statements proving the product was not produced on deforested land after December 31, 2020.
Questions about unvulcanized rubber solutions
What is the HS code for Unvulcanized rubber solutions?
The HS code for Unvulcanized rubber solutions is 400520 (Rubber; unvulcanised, compounded, solutions and dispersions other than those of item no. 4005.10). The HS code for unvulcanized rubber solutions and dispersions is 4005.20.
How do I classify Unvulcanized rubber solutions for customs?
Unvulcanized rubber solutions is classified under HS code 400520 — Rubber; unvulcanised, compounded, solutions and dispersions other than those of item no. 4005.10. This is a 6-digit subheading level code.
Is rubber cement classified under this code?
Rubber cement is often classified under 3506 if it is sold as a retail adhesive, but industrial rubber solutions for manufacturing are classified under 4005.20.
Which countries are the top exporters of unvulcanized rubber solutions (HS 400520)?
In 2025, the top exporters of HS 400520 (the code used for unvulcanized rubber solutions) in UN Comtrade data were Germany ($61M, 32% of world exports), South Korea ($31M) and the United States ($29M). World exports came to about $191M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of unvulcanized rubber solutions (HS 400520)?
In 2025, the top importers of HS 400520 (the code used for unvulcanized rubber solutions) in UN Comtrade data were China ($26M, 14% of world imports), the United States ($25M) and South Korea ($17M). World imports came to about $185M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Unvulcanized rubber solutions the same in all countries?
The base HS code 400520 for Unvulcanized rubber solutions is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for unvulcanized rubber solutions in Brazil?
In Brazil, unvulcanized rubber solutions (HS 400520) is classified under NCM 4005.20.00.