- ▸ Hardener/crosslinker for weatherable two-component (2K) polyurethane coatings
- ▸ Crosslinks hydroxyl acrylic and polyester resins into high-gloss, abrasion-resistant films
- ▸ Automotive-refinish, transportation and industrial-maintenance topcoats
- ▸ High-durability wood and protective coatings requiring UV stability
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 →HDI biuret resins crosslink hydroxyl-functional acrylic and polyester resins to form tough, high-gloss two-component (2K) polyurethane films with excellent UV and weathering durability — the aliphatic backbone is what keeps the cured coating from yellowing on outdoor exposure. They are widely specified in automotive refinish, transportation, industrial-maintenance and high-end wood coatings where gloss retention, chemical resistance and abrasion resistance are required. As a low-free-monomer resin, the biuret grade offers a different viscosity/reactivity balance than the isocyanurate trimer. RawSource supplies HDI biuret polyisocyanate in bulk to coating and CASE formulators
Comparable to Desmodur N100: RawSource supplies this as an independent equivalent (an offset) to Desmodur N100 — it is an HDI biuret polyisocyanate hardener. It is not genuine Desmodur N100-branded material, and RawSource is not affiliated with, authorized by, or endorsed by Covestro.
Desmodur N100 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.