Key Features

Glass transition temperature Tg (°C) 130
Heat resistance rating is Class H

Product Introduction

Features outstanding heat resistance, low resin system viscosity, a mild exothermic reaction, extended pot life, and minimal shrinkage upon curing.

Performance parameters

96240-13008 is an epoxy potting premix manufactured using advanced processing technology, based on low-viscosity Bisphenol A epoxy resin and a toughened curing agent. This product is widely suitable for atmospheric or vacuum encapsulation casting of indoor medium- and high-voltage electrical insulation components, such as motors, transformers, post insulators, bushings, switchgear parts, current and voltage transformers, and more.

Liquid Component Properties

Solidification Property*
A:B = 100:20.3 (weight ratio), Curing conditions: 80°C / 6 h + 100°C / 3 h + 130°C / 7 h

Operating Procedures
Pouring process
Epoxy resin has strong adhesive properties, so the molding surface should be coated with a release agent (primarily silicone-based) before pouring.
Traditional Atmospheric Pressure Potting and Casting
For manufacturing insulating components—such as motor magnets and motor flat wires—casting can be carried out under normal atmospheric pressure. The fully degassed, thoroughly mixed material is then injected into the mold at ambient temperature and pressure. After casting, the product is transferred to a suitable oven, where it undergoes gelation and curing under standard atmospheric conditions.
Traditional vacuum casting
For the manufacturing of insulating components—such as medium- or high-voltage motor coils and power current transformers—the casting process should be carried out in a vacuum environment. The fully degassed mixture is then injected into preheated molds under vacuum conditions. After casting, the products are transferred to a suitable oven for gelation and curing at standard atmospheric pressure.
Curing conditions
First, the resin begins to react and form a gel, which then solidifies into a block-like structure. This ultimately results in a dimensionally stable casting with sufficient strength to allow the removal of the outer mold. The curing process is complete only when no significant changes are observed in the material’s performance. It’s important to note that the minimum curing temperature and duration are carefully specified to ensure the resin system achieves the highest possible cross-linking density— for instance, the 96240-13008 formulation requires a minimum curing temperature of 110°C–120°C. As a reference, the recommended curing cycle is 80°C for 2–6 hours, followed by 100°C for 2–3 hours, and finally 130°C for 6–8 hours. However, the final curing process will ultimately depend on the size and shape of the customer’s specific product.

Process parameters

Viscosity of the 96240-13008 mixture as a function of time at 80 °C

Packaging format

Storage Conditions

Component A: 25 kg
Component B: 5.1 kg

Use safely

When stored under room-temperature, dry conditions, the unopened A and B components have shelf lives of 4 months each.

Important Notes
1. Unhardened materials must not come into contact with food or food utensils. Additionally, precautions should be taken to prevent unhardened material from touching the skin, as some individuals with sensitive skin may experience adverse reactions. It is generally recommended to wear impermeable rubber or plastic gloves and ensure proper eye protection. After each work session, thoroughly wash your skin with soap and warm water—avoid using solvents. Maintain good ventilation in the workplace, and refer to the product’s Material Safety Data Sheet for specific safety guidelines and preventive measures.
2. Since the curing agent is sensitive to moisture, any unused adhesive remaining after opening the container should be sealed and stored immediately.
3. Component A contains functional fillers, which may settle over time. It is recommended to thoroughly and evenly mix the entire contents of the container before use. Additionally, any unused stored A+B premix should also be stirred thoroughly to prevent settling and ensure accurate measurement.