Outdoor Two Component Polyurethane Epoxy Resin For Dry Type Transformer UV Resistance

Outdoor Two Component Polyurethane Epoxy Resin For Dry Type Transfomer UV Resistance
OUTDOOR EPOXY RESIN FOR CT PT VT, CASTING / APG

Outdoor epoxy resin can be a useful material for casting CT (current transformers), PT (potential transformers), and VT (voltage transformers) in outdoor applications. Here are some key features and benefits of outdoor epoxy resin for CT PT VT casting:
Weather Resistance: Outdoor epoxy resin is highly resistant to weathering, UV radiation, and temperature fluctuations, which makes it ideal for use in outdoor applications. It can withstand exposure to sunlight, rain, humidity, and other environmental factors without degrading or breaking down.
Electrical Insulation: Epoxy resin is an excellent electrical insulator, which makes it ideal for use in CT PT VT casting. It can help to prevent electrical current from flowing through the transformer, which can reduce the risk of electrical breakdown or short circuits.
Mechanical Protection: In addition to providing electrical insulation, outdoor epoxy resin can also provide mechanical protection to the transformer. The resin can help to strengthen the transformer, making it more resistant to bending, cracking, or breaking.
Chemical Resistance: Epoxy resin is highly resistant to chemicals and moisture, which makes it ideal for use in harsh outdoor environments. It can help to protect the transformer from exposure to chemicals or moisture that could cause damage or corrosion.
APG Casting: Outdoor epoxy resin can be used for APG (Automatic Pressure Gelation) casting, which can help to improve the quality and consistency of the casting process. APG casting can help to reduce the risk of porosity or other defects in the transformer.
Overall, outdoor epoxy resin can be an effective and reliable material for CT PT VT casting in outdoor applications. Its combination of weather resistance, electrical insulation, mechanical protection, chemical resistance, and APG casting capabilities make it a popular choice for transformer manufacturers.

PRODUCT DESCRIPTION:
Liquid, Hot-curing cast resin system for outdoor electrical insulation material for medium and high voltage application


APPLICATION:
Current and potential transformers

PROCESSING METHODS:
Conventional casting with stage wise curing, or pressure gelation or
Automatic pressure gelation casting (PG or APG process)

PROPERTIES:

Very good mechanical and electrical properties.

Good temperature shock resistance.

Use of silanized fillers enhances stability of dielectric properties under high-humidity condition.

Very good resistance to erosion by UV radiation.


Product data
JT 8836A Liquid and Solvent free modified Epoxy resin

JT 8836B Liquid modified Epoxy hardener

Remark JT 8836B 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 8836B is sensitive to moisture. Partly emptied containers must be resealed immediately

STORAGE:
The components have to be stored under dry conditions at 5 - 30°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.

Process data
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.

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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