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Anhydride / EPOXY CURING AGENT
MTHPA Anhydride epoxy hardener
- Hardener type
- Anhydride
- Available grades
- DH-8 / DH-6
- Standard drum
- 230 kg
Where to use MTHPA
A liquid anhydride curing agent for heat-cured epoxy casting, potting and encapsulation in electrical insulation. Compare DH-8 and DH-6 against your incoming material handling requirements, particularly viscosity and freezing point.
What to check in a trial
Share the resin, casting size and oven cycle so we can discuss grade selection and cure trials.
DAHUA MTHPA is also used in composite, adhesive and coating formulations. CAS 11070-44-3. Standard packaging is a 230 kg drum.
Grade specifications
| Property | DH-8 | DH-6 |
|---|---|---|
| Appearance | Clear pale-yellow liquid | Clear pale-yellow liquid |
| Color (Pt-Co), max. | 200 | 300 |
| Freezing point (°C), max. | 0 | −15 |
| Viscosity at 25 °C (mPa·s), max. | 40 | 60 |
| Acid value (mg KOH/g) | 660–685 | 660–685 |
| Anhydride content (%), min. | 41.5 | 41.5 |
| Volatiles at 120 °C (%), max. | 2.00 | 2.00 |
| Free acid (%), max. | 0.50 | 0.50 |
| Anhydride equivalent (g/mol) | 166 | 166 |
| Density at 20 °C (g/cm³) | 1.21 ± 0.05 | 1.21 ± 0.05 |
Request the current technical data sheet to confirm the specification for your order.
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