1,6-HEXAMETHYLENE DIISOCYANATE- ▸ PU coatings: Crosslinker chemistry for light-stable two-component polyurethane paints.
- ▸ Polyisocyanate hardeners: Feedstock for HDI biuret and isocyanurate curing agents.
- ▸ Automotive refinish: Used in high-performance refinish and topcoat systems.
- ▸ PU elastomers: Component of polyurethane elastomers.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Hexamethylene diisocyanate (CAS 822-06-0) is an aliphatic diisocyanate used to make light-stable polyurethane coatings and elastomers. It is mainly converted to higher-molecular-weight HDI-based polyisocyanates (biuret and isocyanurate) that act as crosslinkers in two-component polyurethane paint systems for automotive refinish, marine, and industrial-maintenance coatings. Supplied as a bulk isocyanate intermediate.
Frequently Asked Questions
What is hexamethylene diisocyanate used for?
Hexamethylene diisocyanate (HDI, CAS 822-06-0) is an aliphatic diisocyanate used to make light-stable polyurethane coatings and elastomers. It is mainly converted to HDI-based polyisocyanate crosslinkers (biuret and isocyanurate) for two-component polyurethane paints in automotive refinish, marine, and industrial-maintenance systems. RawSource supplies it as a bulk isocyanate intermediate.
What is HDI biuret and isocyanurate (trimer)?
HDI is commonly reacted into higher-molecular-weight biuret and isocyanurate (trimer) polyisocyanates that serve as the hardener component in two-component polyurethane coatings, offering light stability and durability. RawSource supplies HDI as the upstream intermediate; specify whether you need monomer or a derivative on the RFQ.
What is the CAS number and HS code for hexamethylene diisocyanate?
HDI is CAS 822-06-0, molecular formula C8H12N2O2, classified under HS heading 2929.10 (isocyanates). Confirm destination-country tariff treatment with your broker and request the CoA and SDS for import and handling documentation.
How is hexamethylene diisocyanate shipped, given its UN number?
HDI is assigned UN 2281 (hexamethylene diisocyanate) and ships under DOT/IATA/IMDG hazardous-materials rules with the required packaging, labeling, and documentation. RawSource provides the SDS with each order; coordinate packaging and transport mode with your carrier.
How is bulk HDI packaged and quoted?
RawSource ships HDI as a bulk liquid intermediate in DOT-compliant drums and larger arrangements for coatings and elastomer manufacturers. Pricing depends on volume, packaging, and hazmat freight; submit an RFQ with your quantity and ship-to for a current quote with CoA and SDS.
