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Electrical Insulating Epoxy Resin
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| Place of Origin | HUBEI, CHINA |
| Brand Name | JT |
| Certification | ISO |
| Model Number | JT8053A&B |
epoxy resin insulator manufacturer for Insulation Parts on Electrical Insulation
TDS:
| EPOXY RSIN | JT 8053 A | 100 pbw |
| HARDENER | JT 8053 B | 90 pbw |
| SILICA POWDER | FILLER | 360 pbw |
| For medium and high voltage indoor electrical insulators | Applications |
| Automatic pressure gelation casting(APG process) | Processing methods |
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Very low initial mixed viscosity Excellent mechanical and electrical performance Adjustable anti-cracking toughness and filler content
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Properties |
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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
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Product data(Guideline values) *
JT 8053 A modified Epoxy resin
| TYPICAL VALUES* |
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Viscosity @ 25℃, mPa.s [ASTM D-2983] ........................................................... 5000-10,000 Non volatile component, wt% [DOWM 101188-TE]..........................................................100 Density @ 25℃ , g/cm3 [ASTM D-1475] ............................................................... 1.14- 1.17 Storage life @ 25℃ (sealed container), month ……………………………………………………………. 12 |
Remark:In order to prevent the absorption of moisture,please keep epoxy resin in sealed container and storage under normal temperature (about 20 to 25℃)
JT 8053 B Modified liquid hardener
| TYPICAL VALUES* |
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Viscosity @ 25℃, mPa.s [ASTM D-2983] ................................................................. 300-500 Vapour Pressure @ 25℃, mbar ...................................................................................... 1 - 2 Density @ 20℃ , g/cm3 [ASTM D-1475] ............................................................... 1.18 - 1.22 Storage life @ 25℃ (sealed container), month ……………………………………………………………. 12 |
Remark:JT 8053 B contains accelerator. Prolonged storage at high ambient temperatures results in an undesirable increase in its viscosity and impairs the reactivity of the Casting Resin system.
JT 8053 B is sensitive to moisture. Partly emptied containers must be resealed immediately.
Storage*
The components have to be stored under dry conditions at 5 - 25°C, in tightly sealed original containers. Under these conditions, the shelf life will correspond to the expiry date stated on the label. After this date, the product may be processed only following reanalysis. Partly emptied containers should be closed tightly immediately after use.
For information on waste disposal and hazardous products of decomposition in the event of fire, refer to the Material Safety Data Sheets (MSDS) for these particular products.
Processing(guideline values)*
System Preparation
General instructions for preparing liquid resin systems
Mix all of the components together very thoroughly (the mixture temperature will be reached at or about 60°C. If lower mix viscosity is expected, preheat resin at higher temperature but not exceed 80°C) under vacuum.
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 behaviour in high voltage applications.
For the mixing of medium to high viscosity Casting resin systems and for mixing at lower temperatures, it is recommended special thin film degassing mixers that may produce additional self-heating of 10-15°C as a result of friction. For low viscous casting resin systems, conventional anchor mixers are usually sufficient.
In larger plants, two pre-mixers are used to mix the individual components (resin, hardener) under vacuum. Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premix can be stored at elevated temperature (about 60°C) for up to about 1 week, depending 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.
Specific Instructions *
Dilute leftover mix at the end of a shift with the resin component prior to storage overnight or over the weekend. Piping containing prefilled components or casting mixes should be cooled immediately after work to prevent sedimentation and/or undesired viscosity increases. This helps minimize material losses and cleaning work.
Mould temperature
APG process 130 - 160°C
Conventional vacuum casting 70 - 100°C
Demoulding times (depending on mould temperature and casting volume)
APG process 10 - 40 min
Conventional vacuum casting 5 - 8h
Cure conditions
APG process (minimal postcure) 4h at 130°C or 3h at 140°C
Conventional vacuum casting 12h at 130°C or 8h at 140°C
To determine whether crosslinking has been carried to completion and the final proper-ties are optimal, it is necessary to carry out relevant measurements on the actual object or to measure the glass transition temperature. Different gel and postcuring cycles in the manufacturing process could influence the crosslinking and the glass transition temperature respectively.
Process parameters(guideline values)*
System:JT 8053A / JT 8053B / Silica filler
| TYPICAL VALUES* |
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JT 8053A Epoxy resin ………………………………………................................................... 100 pbw JT 8053B Epoxy hardener………………………………………............................................80-90 pbw Silica filler………….……………………………....................................................................360 pbw
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| TYPICAL VALUES* |
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Initial Mixed Viscosity @ 40℃, mPa.s [ASTM D-2983] ......................................25000-35000
Initial Mixed Viscosity @ 50℃, mPa.s [ASTM D-2983] ......................................20000-28000
Initial Mixed Viscosity @ 60℃, mPa.s [ASTM D-2983] ......................................10000-15000
Gel time, 80℃, Gelnorm instrument, minute ............................................................150-200
Gel time, 120℃, Gelnorm instrument, minute .......................................................... 15-25
Gel time,140℃, Gelnorm instrument, minute ...............................................................5-10
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*Guideline values, for reference only!
Mechanical and Physical Properties(guideline values)*
Curing condition:10h @ 140℃
| TYPICAL VALUES* |
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Glass transition temperature (DSC, mid point, 10℃/min), °C..................................85-100
Tensile Property, [ISO R 527] Tensile strength, at 25℃, MPa...................................................................................70-80 Elongation at break, % ............................................................................................1.3-1.7 E modulus from tensile test, MPa ............................................................... 10,000-11,000
Flexural Property, [ISO 178] Flexural strength, at 25℃, MPa............................................................................. 110-130 Elongation, % ...........................................................................................................0.8-1.1 E modulus from flexural test, MPa .............................................................. 10,000-12,000
Impact Strength, kJ/m2, [ASTM D-4812] .......................................................................10-15
CTE, TMA, ppm/K ………………………………………………………………………………………..…………… 35-43
Water absorption (10 days @23℃), %, [ISO 62] ..........................................................0.1-0.2
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Electrical Properties(guideline values)*
| TYPICAL VALUES* |
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Dielectric strength @ 25°C, kV/mm [IEC 60243-1].......................................................... >25
Volume resistivity @ 25°C, W.cm [IEC 60093] ....................................................... 1015 – 1016
Dielectric constant, e’ [IEC 60250] ……………………………………………..………………………… 3.5 – 4.0
Dielectric Loss factor( tan d) at 50 Hz [IEC 60250] ………………………………………………………<0.02
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Industrial hygiene
When operating and processing products, must follow the industrial hygiene standards.
For more information, please refer to the corresponding safety data sheet and
Operating protection measures
Workplace safety measures:
Protective clothing Need
Gloves Must need
Arms to protection May contact with the skin, Recommended
Goggles/safety glasses Need
Mask/dust mask Recommended
Skin protection:
Before working To exposed skin protection by cream
After washing Frost of besmear protective cream or nutrition
Contamination of the skin clean With suction paper wipe, wash with warm water and alkali free soap, With a one-time towel dry. Do not use solvents.
Clean workshop environment Use a light paper covering the table and chairs. Using a disposable beaker, etc. Spatter material processing Use sawdust or waste cotton silk blotting, and placed in a plastic woven baskets.
Ventilation:
To workshop Take a breath three to five times per hour.
To position Cover of exhaust fan. The operator should avoid inhalation of vapour.
PRODUCT NAME:
EPOXY RESIN FOR LBS, BUSHINGS, SPOUTS, MONOBLOCK, SWITCH GEARS, EMBEDDED POLES, INSULATORS
TDS:
Characteristics:
Strong adhesion
Good insulation
Good process performance
Good surface gloss and electrical resistance
Excellent moisture resistance
1. Appearance& Characteristics:
| Item | Color | Viscosity@25℃(mPa·s) | Density@25℃( g/cm3 ) |
| JT8053A Epoxy resin | clear liquid | 1000-3000 | 1.00-1.20 |
| JT8053B Hardener | Yellowish liquid | 10-80 | 0.90-1.00 |
2. Mixing ratio: JT2051A/JT2051B=4/1(pbw)
3. Applicable time: 25-40mintus at 25℃( mixture: 100g)
4. Curing condition: 8-12h@25℃ or 6h@60℃, full curing takes 3days at Room temperature.
5. Process:
Mixing two components in a certain proportion and keep it for 10minutes, brush them to the iron core after the viscosity is increasing.
6. Properties:
| Hardness(Shore D) | 70-80 |
| Bending strength (MPa) | 30-50 |
| Impact strength (kJ/m2) | 20-40 |
| Dielectric strength (kV/mm) | 10-15 |
| Volume resistivity (W·cm) | >1013 |
7. Packing:
Component A: 24kg
Component B: 6kg
8. Storage
The product should be sealed in the original packaging container, stored in a dry and ventilated place to save. The shelf life is 6 months under 18~40℃ condition . If exceeds the shelf life time, it needs to be tested again to confirm whether it can be used or not.
Client Product:
Equipment used by customers:
Hubei Plant and Guangdong Plant:
ISO certifcate:
Part of our customers:
FAQ:
1. What’s the Pre-filled?
Pre-filled is the resin or hardener has been filled with silica sands before delivering to you.
2. Is Pre-filled resin cheaper than Pure resin?
Generally it is. However, you should consider the final cost. If you can find qualified silica sands in you local market, the pure resin is better choice. Silica sands are very cheap, sea freight cost is high. With same quantity of resin in a shipment, you can get more final mixed resin with local silica sands.
3. Why JiangTe resin doesn’t offer Flexibilizer and Accelerator?
We’ve added them into resin/hardener already before delivering to you. So you can use our materials easily
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