HDI Biurets & Trimers
CAS:Various (Product Family)
Code:HDI-BT
Formula:N/A (Product Family)
HDI biurets and trimers are aliphatic polyisocyanate crosslinkers that deliver outstanding weatherability, high crosslink density, and fast cure for premium polyurethane systems. They enable low-VOC, non-yellowing topcoats and elastomers with long-term durability. Note: This represents a product family with multiple grades and specifications available.
HDI-BT
Technical Specifications
AppearanceClear to pale yellow liquid
Density1.07 g/cm³ (25°C)
Viscosity1,200–1,800 mPa·s (25°C)
Nco Content21–23% NCO
PurityPolyisocyanate oligomer
Values shown are typical specification targets; request the latest Technical Data Sheet for certified ranges.
Applications
2K polyurethane coatings
automotive refinish clear coats
protective industrial topcoats
elastomer systems
Chemical Features
crosslinking