JT 8219A/B Flame Retardant Epoxy Resin - Room Temperature Curing, 1500-3000 mPa.s Viscosity, UL94 V-0 Rated
JT 8219A/B flame retardant epoxy resin system designed for room temperature curing applications requiring excellent electrical insulation properties and UL94 V-0 flame resistance.
- Room temperature curing capability
- Excellent flame retardant properties (UL94 V-0)
- Low viscosity: 1500-3000 mPa.s at 40°C
- Good impregnation and adhesion to coil skeletons
- Long pot life: 30-60 minutes at 25°C
- Superior electrical insulation performance
Ideal for low voltage CT and zero-sequence instrument transformers, electronic components including:
- Ignition systems and regulators
- Electronic and network transformers
- Pump motors and ignition coils
- AC capacitors (vertical, horizontal, cartridge, film)
- Power modules and LED modules
- Insulating pouring lamps and negative ion generators
| Parameter | Value | Test Method |
|---|---|---|
| Viscosity @ 25°C | 2,000-6,000 mPa.s | ISO 2555 |
| Density @ 25°C | 1.50-1.70 g/cm³ | ISO 1675 |
| Storage Life @ 25°C | 12 months | - |
| Parameter | Value | Test Method |
|---|---|---|
| Viscosity @ 25°C | 30-300 mPa.s | ISO 2555 |
| Vapor Pressure @ 25°C | 1-2 mbar | - |
| Density @ 25°C | 0.95-1.05 g/cm³ | ISO 1675 |
| Storage Life @ 25°C | 12 months | - |
| Property | Value |
|---|---|
| Hardness (Shore D) | 70-80 |
| Tensile Strength | >10 MPa |
| Flexural Strength | >40 MPa |
| Thermal Conductivity | >0.4 W/m·K |
| Dielectric Strength | >15 kV/mm |
| Volume Resistivity | 1×10¹⁵ Ω·cm |
| Component | Ratio |
|---|---|
| JT 8219A Epoxy Resin | 100 pbw |
| JT 8219B Epoxy Hardener | 20-25 pbw |
For vacuum casting: Typical mold temperature 70-80°C, demolding time 5-8 hours, post-cure at 130°C for 10 hours
This product may cause skin and eye irritation. Use appropriate personal protective equipment including gloves, safety glasses, and protective clothing. Ensure adequate ventilation in the workplace.
Store in sealed containers at 20-25°C to prevent moisture absorption. Shelf life: 12 months from production date.
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