HT300 HDI Trimer Hardener
Suitable for air-drying or baking systems for automotive OEM and refinish coatings, transportation, industrial finishes and plastics.
- Product model:
- HT300
- Product category:
- Hardeners
Blue packaging drum and model label for HT300 isocyanate hardener
Key features
- Low viscosity
- Long pot life
- Wide applicability
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 18 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 | 19.0-21.0% |
| Color (Pt-Co) | ≤60 |
| Viscosity at 25°C | 200-700 mPa·s (25℃) |
| Monomer content | <0.50% |
Features
- Extended pot life, good elasticity, excellent gloss retention and miscibility
- HT300 is primarily a hardener component for light-stable, weather-resistant coatings, providing excellent mechanical properties and gloss retention.
- Its allophanate structure gives HT300 good hand-mixing behavior in waterborne systems, favorable viscoelasticity and relatively low reactivity.
- Particularly suitable for waterborne, high-solids, polyaspartic and UV-curable systems
Applications
Applications: automotive coatings and industrial finishes
Application notes
Allow coatings formulated with this product to cure for one week before testing their properties.
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.
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