- ▸ Hardener/crosslinker for high-durability, light-stable two-component (2K) polyurethane coatings
- ▸ Crosslinks hydroxyl acrylic and polyester resins into weatherable, chemical-resistant films
- ▸ Automotive OEM and refinish clearcoats and basecoats
- ▸ Industrial-maintenance and protective coatings
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.
Request SDS →The isocyanurate ring gives this HDI polyisocyanate strong thermal and hydrolytic stability, and crosslinking it with hydroxyl-functional acrylic or polyester resins produces 2K polyurethane films with excellent light stability, weathering performance and chemical resistance. It is a workhorse hardener for automotive OEM and refinish clearcoats and basecoats, industrial-maintenance systems and protective coatings. Compared with the biuret grade, the trimer typically offers higher functionality and improved hardness and weatherability. RawSource supplies HDI isocyanurate-trimer polyisocyanate in bulk to coating and CASE formulators
Comparable to Desmodur N3300: RawSource supplies this as an independent equivalent (an offset) to Desmodur N3300 — it is an HDI isocyanurate trimer polyisocyanate hardener. It is not genuine Desmodur N3300-branded material, and RawSource is not affiliated with, authorized by, or endorsed by Covestro.
Desmodur N3300 is a registered trademark of Covestro, used here solely for nominative comparison to identify the equivalent grade. RawSource supplies an independent equivalent product; confirm equivalence against your specification and the Certificate of Analysis.
