HT400 HDI Uretdione Dimer Hardener
A low-viscosity HDI uretdione dimer hardener for high-solids systems, with excellent mechanical properties and gloss/color retention.
- Product model:
- HT400
- Product category:
- Hardeners
Blue packaging drum and model label for HT400 isocyanate hardener
Key features
- Low viscosity
- Excellent mechanical properties
- Gloss and color retention
Specifications
Technical documents and conditions of use
See the technical documents below for specification sources and conditions. Verify the exact grade and document version before application. Specification sources
See page 19 of the selection handbook for this grade. The handbook is not a standalone grade-specific TDS or SDS. Contact the technical team for the formal specification and safety documentation.
Verify performance and service-life statements against the relevant reports, specimen preparation, test standards and service conditions. Service-life figures without supporting reports are not durability guarantees; site photographs do not replace film-thickness testing or project acceptance records.
| Parameter | Value / unit / conditions |
|---|---|
| NCO content | 20.5～22.5% |
| Color (Pt-Co) | ≤80 |
| Viscosity at 25°C | 100-280 mPa·s (25℃) |
| Monomer content | ≤0.5% |
Features
- Low viscosity, particularly suitable for high-solids systems
- Excellent mechanical properties and gloss/color retention
- Uretdione structure with a broad range of applications
- Can be blended with conventional HDI trimers to reduce formulation VOC
- Good flexibility and elasticity in the resulting coating
- Supports low-viscosity UV-curable resins with good mechanical properties
Applications
Applications: automotive OEM and refinish coatings, flexible coatings and UV-curable prepolymers
Storage
This product is combustible. Store at or below 40 degrees Celsius in a cool, dry, ventilated place away from ignition sources. Shelf life: one year.
Key notes
These parameters represent typical performance ranges. Follow the product TDS/SDS, batch test report and actual service conditions. Contact us for the relevant documents, samples and application recommendations.
View more products
Our polyaspartic product range serves a variety of industries.
Return to Product Center