Custom Silicone Seal Strip for High Voltage Power Equipment | Custom Extrusion, Low MOQ

Custom Silicone Seal Strip for High Voltage Power Equipment

Our custom silicone seal strips are professionally extruded for high voltage power distribution equipment. Widely used in high voltage switchgear cabinets, transformer boxes, power control cabinets and outdoor electrical facilities.

Made of high-purity industrial silicone rubber, these sealing profiles deliver stable insulation, excellent weather resistance and long-lasting sealing performance for power system operation.

Key Features

• Wide temperature resistance: -60℃ to +230℃, suitable for extreme cold and high-temperature outdoor environments

• Reliable dielectric strength: 20–30kV/mm, providing safe auxiliary insulation for power equipment

• Strong UV resistance, ozone resistance and anti-aging performance

• Excellent waterproof, dustproof and airtight sealing effect

• High resilience and low compression set for long-term repeated use

Custom Service

We provide full custom extrusion service according to your drawings or samples.
Available shapes include T-shape, U-shape, P-shape, D-shape, rectangular and special irregular profiles.

Custom size, thickness, hardness (30–80 Shore A) and color are all acceptable.
Low MOQ: only 50 meters for customized orders.

Application Scope

• High voltage switchgear cabinet

• Transformer box and box-type substation

• Outdoor electrical power cabinet

• Cable trench and electrical control equipment

Important Note

This silicone strip is designed for equipment gap sealing and auxiliary insulation only. It is not used for main conductor high-voltage insulation. All products meet standard industrial requirements for power equipment sealing.

Technical Parameters

• Material: Industrial silicone rubber (VMQ)

• Working temperature: -60℃ ~ +230℃

• Dielectric strength: 20–30kV/mm

• Hardness: 30–80 Shore A (customizable)

• MOQ: 50 Meters

For your exact project specifications and quotation, please Contact Us anytime. We offer professional custom sealing solutions for global power equipment buyers.