Resins — dangerous goods classification
Styrene-containing polyester and fibreglass resins are UN1866 Class 3; their peroxide hardeners are Division 5.2 and a different consignment problem entirely.
The mistake this category generates
The resin and the hardener are usually sold together and classified separately. A kit needs both handled.
Entries (2)
| UN | Proper shipping name | Class | PG | Labels | Air |
|---|---|---|---|---|---|
| UN1866 | Resin solution, flammable | 3 | I/II/III — derived | FLAMMABLE LIQUID | pax limited·cargo permitted |
| UN3105 | Organic peroxide type D, liquid | 5.2 | none | ORGANIC PEROXIDE | pax limited·cargo permitted |
Shipper notes
UN1866 Resin solution, flammable
- Two-part epoxy resins are more often Class 8 or Class 9 or unregulated; styrene-containing polyester resins are Class 3.
UN3105 Organic peroxide type D, liquid
- Organic peroxides have no packing group; they are typed A to G by their behaviour in the UN test series. Many require temperature control, which changes the entry again.
Questions
- What UN number applies to resins?
- Styrene-containing polyester and fibreglass resins are UN1866 Class 3; their peroxide hardeners are Division 5.2 and a different consignment problem entirely.
- What do people get wrong about shipping resins?
- The resin and the hardener are usually sold together and classified separately. A kit needs both handled.
- Which entries does Classify7 encode for resins?
- UN1866 Resin solution, flammable (class 3); UN3105 Organic peroxide type D, liquid (class 5.2)
Classify your actual product
Which of these entries applies depends on the formulation, not the category. Send the product and Classify7 returns the entry with the evidence that selected it — or tells you which measurement it needs first.
Classify a product