Custom molded electrical silicone rubber bellow boots

Electrical silicone rubber bellow boots can cover a connection or cable region while allowing the intended movement. The boot should not pull on the connection as its folds extend or compress. Its end seats, working length and surrounding clearance need to be developed around the complete electrical assembly.

Custom material, dimensions, hardness and color are available. Define the connector and cable geometry, including any latch or service feature that must remain accessible. The selected formulation and finished construction should be evaluated for any required electrical or environmental function.

Check the boot through the normal movement range with the cable supports installed. Look for folds trapped against the connector or an end that starts to lift. The cover should not become the element that limits cable movement or disconnects a joint. During service, release the connection through its intended mechanism rather than pulling on the rubber. Inspect the folds and attachment areas before refitting, and clear debris that could interfere with seating or become trapped beside the electrical connection.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. The boot should not pull on the connection as its folds extend or compress.

Custom geometry

Its end seats, working length and surrounding clearance need to be developed around the complete electrical assembly.

Fit evaluation

Check the boot through the normal movement range with the cable supports installed.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. The boot should not pull on the connection as its folds extend or compress. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.