Impact Resistant Epoxy Casting
Tough Protection Against Shock and Vibration
During transportation, installation, and operation, electrical insulation components often need to withstand vibration, shock, and mechanical loads. Our impact resistant epoxy casting uses toughening modification technology to deliver excellent electrical performance while achieving an impact strength above 15 kJ/m². This product effectively resists cracking caused by external impact and vibration.
Proven Results in Real-World Applications
In real-world applications at transformer manufacturers in Guilin, our impact resistant epoxy casting significantly reduced the breakage rate of large transformer insulation components during long-distance transportation and installation. This product is particularly suitable for outdoor and mobile electrical equipment. All products have passed CMA and SGS third-party testing. We use four inspection checkpoints to ensure quality. Our production capacity includes 6 reaction vessels, 3 drying ovens, 3 grinding mills, and 3 dispersant containers.

Technical Specifications with Customization Options
Our impact resistant epoxy casting comes in 25kg and 200kg packaging. We ship as regular chemical products. Storage should be in a cool, dry, and dark place with sealed containers. The shelf life is 12 months. We provide free samples for testing. We optimize the formulation based on your impact strength, flexural strength, and operating temperature requirements. We adjust the toughening modification approach for different impact load types (high-force low-speed or low-force high-speed). We also optimize weather resistance and temperature performance for different outdoor application scenarios.
|
Parameter |
Value |
|
Impact strength (unnotched) |
≥15 kJ/m² |
|
Flexural strength |
≥120 MPa |
|
Elongation at break |
≥2.5% |
|
Volume resistivity |
≥10¹⁴ Ω·cm |
|
Dielectric strength |
≥20 kV/mm |
|
Glass transition temperature (Tg) |
≥110°C |
|
Operating temperature range |
-40°C to 130°C |
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