JT 8990 Epoxy Resin System for 33kV Dry Type Transformers - Class H Insulation, 1500-3000 mPa.s Viscosity
Price:
$3/kg
MOQ:
25KG
Delivery Time:
5 days
Brand:
JT-RESIN
Product Description
Product Overview
JT 8990 Epoxy Resin System is a liquid, latent, silica flour filled, hot-curing cast resin formulation specifically designed for 33kV dry type transformers with Class H insulation rating. This system offers excellent impregnating performance and convenient processing characteristics.
Technical Specifications
Mixing Ratio
JT 8990 A Epoxy Resin: 100 parts by weight
JT 8990 B Epoxy Hardener: 80 parts by weight
JT 8990 B Epoxy Hardener: 80 parts by weight
JT 8990 A Epoxy Resin Properties
| Parameter | Value | Test Method |
|---|---|---|
| Viscosity @ 25°C | 1,500-3,000 mPa.s | ISO 12058 |
| Epoxy Value | 0.45-0.51 equiv/g | ISO 3001 |
| Density @ 25°C | 1.13-1.15 g/cm³ | ISO 1675 |
| Vapor Pressure @ 20°C | <0.01 Pa | Knudsen |
| Vapor Pressure @ 60°C | <0.5 Pa | Knudsen |
| Storage Life @ 25°C | 12 months | Sealed container |
JT 8990 B Epoxy Hardener Properties
| Parameter | Value | Test Method |
|---|---|---|
| Viscosity @ 25°C | 50-80 mPa.s | ISO 12058 |
| Vapor Pressure @ 20°C | ~0.5 mbar | Knudsen |
| Vapor Pressure @ 60°C | ~10 mbar | Knudsen |
| Density @ 25°C | 1.19-1.22 g/cm³ | ISO 1675 |
| Storage Life @ 25°C | 12 months | Sealed container |
Applications
- Medium and high voltage indoor transformers
- Electrical insulators and switchgear components
- Various electrical parts requiring Class H insulation
Processing Method
Conventional vacuum self gravity casting for optimal impregnation and void-free results.
Process Viscosity
Application Examples
Storage & Handling Notes
Epoxy Resin: Store in sealed containers at 20-25°C to prevent moisture absorption.
Epoxy Hardener: May crystallize at low temperatures. Heat to 60°C to eliminate crystals. Contains accelerator - prolonged high-temperature storage may increase viscosity and affect reactivity.
Contact Information
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Get in Touch
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Company
JIANGTE INSULATION COMPOSITE
Location
RM1204, Greenland Center of Financial City, No.662 Huangpu M Avenue, Tianhe District, Guangzhou, China.
Contact Person
Sales Manager