IPDI Isocyanurate (Trimer) Crosslinker

CAS 53880-05-0

In Stock

MOQ

200 kg

Lead Time

7–14 days

Packaging

200 kg steel drums (nitrogen-blanketed)

Specifications

NCO Content17.0–18.5%
Color (APHA)≤20
Functionality~3.5
Solids Content70% in n-butyl acetate
Free Monomer IPDI<0.5%
Viscosity (23°C)800–1500 mPa·s

FAQ

IPDI trimer produces harder films (pencil hardness typically H–2H vs HB–H for HDI trimer) due to the alicyclic ring structure, but exhibits slightly higher viscosity. Both provide excellent UV/yellowing resistance. IPDI trimer is preferred where maximum hardness and scratch resistance are required; HDI trimer is chosen where flexibility and lower-viscosity formulations are priority.

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