JT 6603 Transformer Insulation Epoxy Resin System - 65-80°C Glass Transition, 110-125 MPa Flexural Strength
JT 6603 is a liquid, latent, silica flour-filled, hot-curing epoxy resin system specifically formulated for transformer insulation applications. This solvent-free chemical raw material offers excellent impregnating performance and processing convenience.
- Long pot-life with short gel-time under high temperature
- Excellent mechanical and electrical properties
- Superior crack resistance for durable insulation
- Solvent-free formulation for safer handling
- Pre-filled with silica flour for consistent performance
Ideal for instrument transformers and dry type distribution transformers requiring reliable electrical insulation.
- Conventional casting with stage-wise curing
- Pressure gelation (PG process)
- Automatic pressure gelatin casting (APG process)
| Component | Parameter | Test Method | Value Range |
|---|---|---|---|
| JT 8058A Resin | Aspect | Visual | Red paste |
| Viscosity at 40℃ | ISO2555:1989 | 2000-5000 Mpa.s | |
| Specific weight at 20℃ | ISO2811-2:1997 | 1.55-1.62 g/cm³ | |
| Filler content | % by weight | 47-52% | |
| JT 8058B Hardener | Aspect | Visual | Red paste |
| Viscosity at 40℃ | ISO2555:1989 | 1500-3000 Mpa.s | |
| Density at 20℃ | ISO2811-2:1997 | 1.70-1.80 g/cm³ | |
| Filler content | % by weight | 52-58% |
| Property | Test Method | Value Range |
|---|---|---|
| Tensile strength | ISO R 527:1993 | 65-78 N/mm² |
| Elongation at break | ISO R 527:1993 | 1.8-2.0% |
| E modulus from tensile test | ISO R 527:1993 | 8000-9500 N/mm² |
| Flexural strength | ISO 178:2001 | 110-125 MPa |
| Glass transition temperature | ISO 11357-2:1999 | 65-80°C |
| Water absorption | ISO 62 | 0.15-0.20% by wt. |
| Density at 20°C | - | 1.65-1.75 g/cm³ |
Important: JT 8055B contains accelerator. Prolonged storage at high ambient temperatures results in viscosity increase and impaired reactivity. Components are sensitive to moisture and must be stored in tightly sealed containers at 5-25°C.
- Store under dry conditions at 5-25°C in sealed original containers
- Shelf life corresponds to expiry date on label
- Reseal containers immediately after partial use
- Stir components before partial use due to potential filler sedimentation
Hubei Jiangte Insulation Composite
No.219, Zhanghua Rd(N), Economic & Development Zone of Qianjiang City, Hubei Province, China
Tel: +86-728-6201068 | Fax: +86-728-6202066
Guangzhou Jiangte Insulation Composite
Rm606, DongHong International Plaza, No.113, Chebei Rd, Tianhe District, Guangzhou, China
Tel: +86-20-82320316 | Fax: +86-20-82315407
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