Insight · October 22, 2026
Why Specify HDX-100 for Polyaspartic and 2K PU Systems
Public Dongsen specs for HDX-100 and how Monolith routes overseas evaluation of HDI trimer hardeners.
HDX-100 is Dongsen Chemicals’ published aliphatic HDI trimer hardener (100% solids). On the Monolith × Dongsen overseas site it is a primary pairing candidate with DSPA-series polyaspartic resins where an aliphatic HDI trimer direction is required.
Published parameters (dongsenchem.com)
- Chemistry: Aliphatic HDI Trimer
- Solid content: 100%
- NCO: 22.0 ± 0.5%
- Free HDI: ≤ 0.3%
- Viscosity: 3250 ± 750 cps at 25°C
Source: dongsenchem.com/product/hdx-100/. Full TDS/MSDS via Dongsen or Monolith inquiry.
HDX-1200 is also featured on this site for polyaspartic/PU evaluation; numeric specs should be requested (no dedicated public product page as of late 2026).
Contact: jb@polyasparticresin.com · WhatsApp +86 135 5613 5445.