Case Study of Home Appliance Power Potting | A Reliable Choice for High Hardness and Flame Retardant Protection

In modern home appliances, the power module is one of the core components, which directly affects the safety and stability of home appliance operation. Whether it is a refrigerator, washing machine, water heater, or small smart home device, the power module works in a high-temperature, high-pressure, humid, and even dusty environment for a long time. Without effective protective measures, it is prone to problems such as short circuit, breakdown, cracking, and water ingress failure, which can affect the overall lifespan and user experience of the device.Background and Challenges Traditional power protection methods often rely on simple shell isolation or local adhesive sealing, but there are still the following challenges:❌ Insufficient mechanical strength: High frequency switches and long-term thermal cycling can easily cause the gel to crack and lose its protective effect.❌ Poor flame retardancy: Once the power supply overheats or breaks down, ordinary colloids are difficult to meet safety standards.❌ Insufficient moisture resistance: In humid environments, water vapor infiltration can cause corrosion of metal components and reduce insulation performance.❌ Limited temperature resistance: Under long-term operation, the instantaneous temperature of household appliance power supplies may shock up to 150 ℃, posing a severe test on the stability of colloids.This poses higher requirements for power supply sealing materials: they must have high hardness, good adhesive strength, and be able to firmly fix components, while also being flame retardant, moisture-proof, and heat-resistant to ensure long-term stable operation.Solution: EP 1712 high hardness epoxy sealantFor the challenge of home appliance power modules, it is recommended to use EP 1712A/B two-component epoxy potting material. This material is a solvent-free room temperature curing system with moderate fluidity and friendly operation process. After curing, it forms a dense protective layer with high hardness and toughness.Product advantages✔ High hardness and toughness: It combines rigidity and impact resistance, avoiding cracking…