HT500 HDI Trimer Hardener
A low-viscosity, HDI-based polyisocyanate with high NCO content. It is a clear, colorless to slightly yellow liquid at room temperature and supports ambient curing.
- Product model:
- HT500
- Product category:
- Hardeners
Blue packaging drum and model label for HT500 isocyanate hardener
Key features
- Excellent gloss and color retention
- High NCO content
- Excellent mechanical properties
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 20 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 | 22.5～24.5% |
| Color (Pt-Co) | ≤80 |
| Viscosity at 25°C | 400-1000 mPa·s (25℃) |
| Monomer content | ≤0.50% |
Features
- Excellent gloss and color retention
- High NCO content and high Koenig pendulum hardness
- Excellent mechanical performance.
- A low-viscosity HDI-based polyisocyanate, supplied as a clear, colorless to pale-yellow liquid at room temperature
- Ambient curing
- Soluble in organic solvents including ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, acetone, toluene, xylene and S-100
Applications
Applications: high-solids automotive OEM, automotive refinish, transportation and plastic coatings
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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