Product classification
HS code for Industrial adhesive: 3506.99
Glues and other adhesives, prepared, n.e.c. in heading no. 3506, not exceeding a net weight of 1kg.
Classification of industrial adhesive under HS 3506.99
Industrial adhesives are classified under HS code 3506.99, which falls within Chapter 35 of the Harmonized System. This chapter encompasses albuminoidal substances, modified starches, glues, and enzymes. Specifically, heading 3506 covers prepared glues and other prepared adhesives that are not elsewhere specified or included. The classification 3506.99 is a residual category used for products that do not meet the criteria for retail packaging and are not based on specific chemical compositions defined in other subheadings. These adhesives are essential in manufacturing processes, providing structural bonding, sealing, and assembly across various sectors. The classification depends on the product being a "prepared" adhesive, meaning it is a mixture of components designed for a specific bonding function rather than a single chemical compound. If the product is a pure polymer without additives for adhesive use, it might be classified in Chapter 39. However, once formulated with fillers, plasticizers, or solvents to function as a glue, 3506 becomes the primary heading. This code is often used for bulk industrial shipments of epoxy resins, polyurethanes, and cyanoacrylates that are intended for factory use rather than consumer sale. The technical distinction lies in the preparation and the packaging weight, as specified in the heading notes.
- Covers
- Bulk epoxy resin adhesives
- Industrial polyurethane sealants
- Cyanoacrylate glues for manufacturing
- Hot melt adhesives for industrial packaging
- Structural acrylic adhesives
- Anaerobic threadlockers
- Also under 3506.99
- Elmer's (industrial bulk)
- Franklin International (Titebond industrial, non-wood specific)
- various generic industrial silicate glues
- specialized construction mastics
Codes often confused with 3506.99
Common mistake. Industrial adhesives are frequently confused with HS code 3506.10, which is reserved for products put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg. Another common error is classifying them under Chapter 39 (3907-3911) if the product is a primary form polymer, or under 3214 if the product is considered a mastic or painters' filling.
Top exporters and importers of HS 350699 (the code used for industrial adhesive), 2025
In 2025, the largest exporter of HS 350699 (the code used for industrial adhesive) in UN Comtrade data was China, with 24% of world exports; the largest importer in UN Comtrade data was India, with 7.7% 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 350699, not only industrial adhesive.
Top exporters 2025 · share of world exports
- 1 China $515M 24% of world exports
- 2 Netherlands $456M 21% of world exports
- 3 United States $167M 7.8% of world exports
World total: $2.1B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 India $171M 7.7% of world imports
- 2 China $158M 7.1% of world imports
- 3 Vietnam* ~$118M 5.3% of world imports · partner records ↗
World total: $2.2B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 industrial adhesive
Brazil classifies industrial adhesive under NCM 3506.99.00: HS 3506.99 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about industrial adhesive
What is the HS code for Industrial adhesive?
The HS code for Industrial adhesive is 350699 (Glues and other adhesives; prepared, n.e.c. in heading no. 3506, not exceeding a net weight of 1kg). The primary HS code for industrial-grade prepared adhesives not elsewhere specified is 3506.99.
How do I classify Industrial adhesive for customs?
Industrial adhesive is classified under HS code 350699 — Glues and other adhesives; prepared, n.e.c. in heading no. 3506, not exceeding a net weight of 1kg. This is a 6-digit subheading level code.
Does the packaging size affect the HS code for adhesives?
Yes, if the adhesive is packaged for retail sale and weighs less than 1 kg, it must be classified under 3506.10 regardless of its chemical composition.
Which countries are the top exporters of industrial adhesive (HS 350699)?
In 2025, the top exporters of HS 350699 (the code used for industrial adhesive) in UN Comtrade data were China ($515M, 24% of world exports), the Netherlands ($456M) and the United States ($167M). World exports came to about $2.1B, 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 industrial adhesive (HS 350699)?
In 2025, the top importers of HS 350699 (the code used for industrial adhesive) in UN Comtrade data were India ($171M, 7.7% of world imports), China ($158M) and Vietnam (about $118M). World imports came to about $2.2B, 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 Industrial adhesive the same in all countries?
The base HS code 350699 for Industrial adhesive 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 industrial adhesive in Brazil?
In Brazil, industrial adhesive (HS 350699) is classified under NCM 3506.99.00.