Key Features

Glass transition temperature Tg (°C) 90–105
Heat resistance rating is Class H
 

Product Introduction

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

Performance parameters

96240-13002 is an epoxy casting compound 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 potting and casting applications in indoor medium- and high-voltage electrical insulation components, such as ignition coils, automotive motors, transformers, post insulators, bushings, switchgear parts, current and voltage transformers, and more.

Liquid Component Properties

Solidification Property*

A:B = 100:75 (weight ratio), Curing conditions: 95°C / 2 h + 95–130°C / 1 h + 130°C / 2 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 performed 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 windings and power current transformers—casting 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 an appropriate oven for gelation and curing at standard atmospheric pressure.
Curing conditions
First, the resin begins to undergo a gelation reaction, gradually solidifying into a block-like structure. This process ultimately results in a dimensionally stable casting with sufficient strength to allow removal of the outer mold. The curing process is considered 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—specifically, for the 96240-13002 formulation, the recommended minimum curing temperature ranges from 95°C to 130°C. A typical reference curing cycle includes: - 95°C for 2 hours, - followed by heating to 95–130°C for 1 hour, - and finally holding at 130°C for an additional 2 hours. However, the final curing profile will vary depending on the size and shape of the customer’s specific product.

Process parameters

Viscosity of the 96240-13002 mixture as a function of time at 80 °C

Packaging format

Storage Conditions

Component A: 25 kg
Component B: 18.75 kg

Use safely

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

Important Notes
1. Unhardened material must not come into contact with food or food utensils. Additionally, precautions should be taken to prevent the material from touching 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 precautions.
2. Since the curing agent is sensitive to moisture, any unused adhesive remaining after opening the container should be sealed and stored immediately.
3. Components A and B contain functional fillers that 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.