| |
JT 8524A Epoxy Resin 100 pbw
JT 8524B Epoxy Hardener 80 pbw
Silica filler 270 pbw |
| |
Liquid, Hot-curing cast resin system for outdoor electrical insulation material for medium and high voltage applicaions.
|
| | JT 8524A/JT8524 B is epoxy resin system formulated for indoor electrical insulator parts. This product doesn't contain solvent, and has excellent mechanical and electrical performance
| Summary
|
| | Excellent mechnical and electrical performance Properties
High thermal shock resistance
Excellent long term breakdown resistance
|
| | For medium and high voltage indoor electrical insulator parts, and fiber reinforced Application And filler reinforced cast resin transformer,instrument transformer, etc.
|
| | Hubei Jiangte Insulation Composite Guangzhou Jiangte Insulation Composite Add:No.219,Zhanghua Rd(N),Economic & Development Add:Rm606,DongHong International Plaza, No. Zone of Qianjiang City, Hubei Province, China. 113, Chebei Rd, Tianhe District, Guangzhou,China. Tel:+86-728-6201068 Tel:+86-20-82320316 Fax:+86-728-6202066 Fax:+86-20-82315407 |
| |
Processing Methods
Conventional vacuum cast technology, mould temperature range is 70℃–80℃, demoulding time is about 5-8h(different as per temperature and volume). After cure at 130℃ and keep warm for 10h.
The demould time and after cure cycle need to be determined as per specific product design and process technology. Pls contact our technicians for more info.
Product data (guideline values) | |
| JT 8524A Liquid modified Epoxy resin | TYPICAL VALUES* | | Epoxy group content, mol/kg [ASTM D-1652].............................................................. 4.9-5.3 Non volatile component, wt% [DOWM-101188-TE].........................................................100 Viscosity@25℃, mPa.s[ASTM D-2983] .............................................................. 5000–10000 Density@25℃, g/ cm3 [ASTM D-1475] ................................................................. 1.10–1.20 Storage life@25℃(sealed container), month....................................................................12 | Remark: To avoid water absorption, putting epoxy resin inside sealed container and keep at temperature 20-25℃ are suggested JT 8524 B Pre catalytic liquid anhydride curing agent | TYPICAL VALUES* | | Viscosity @ 25℃, mPa.s [ASTM D-2983] ................................................................1000-2500 Density @ 25℃, g/cm3 [ASTM D-1475] ................................................................ 1.15–1.25 Vapor pressure @ 25℃, mbar ......………………………………………………………………………………. 1 - 2 Storage life @ 25℃(sealed container), month....................................................................12 | * typical value can not be regarded as product specs Remark: This hardener is sensitive to water. If water content is high, which may change its reactivity, and finally change its performance. It must be stored in sealed container and kept in normal temperature( about 20–25℃). | |
| |
Process data (guideline values) |
| General instructions for preparing liquid resin systems
Long pot life is desirable in the processing of any ARALDITE casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important. Proper mixing will result in:
• better flow properties and reduced tendency to shrinkage
• lower internal stresses and therefore improved mechanical properties on object
• improved partial discharge behavior in high voltage applications.
For the mixing of medium- to high viscous Epoxy casting resin systems and for mixing at lower temperatures, we recommend special thin film degassing mixers that may produce additional self-heating of 10-15 K as a result of friction. For low viscous Epoxy casting resin systems, conventional anchor mixers are usually sufficient. The prefilled Epoxy resin and Hardener can be stored at elevated temperature (about 60°C) for up to about 1 week, de-pending on formulation. Intermittent agitation during storage is advisable to prevent filler sedimentation.
Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. The required vacuum is 0.5 to 8 mbar. The vapour pressure of the individual components should be taken into account. | System Preparation
|
