Silicone Sponge

Silicone sponge is a closed-cell elastomer designed for reliable environmental sealing in demanding indoor and outdoor applications.

Stockwell Elastomerics manufactures custom silicone sponge gaskets, strips, and pads fabricated to meet specific compression, temperature, and durability requirements.

Engineered to seal. Built to last.

Why Silicone Sponge?

Silicone sponge is commonly specified when applications require environmental sealing against dust and moisture. It has a wide operating temperature range as well as UV and ozone resistance, making it a great choice for applications with long-term outdoor conditions.

Silicone sponges are soft and conformable for applications that require compression. Its closed-cell structure helps resist water absorption while maintaining flexibility and sealing force over time.

Custom Fabrication Capabilities

We manufacture silicone sponge components according to your specification using various methods such as precision die cutting, waterjet cutting, flash cutting, and slitting.

Stockwell offers custom adhesive laminated configurations with an array of acrylic and silicone adhesive options available.

Cut samples are available utilizing our waterjet for rapid prototyping.

All fabrication is performed at our U.S.-based facility for fast response and consistent quality.

Common Applications

Silicone sponge is frequently used in electronics and telecom enclosures, renewable energy and EV charging systems, LED lighting systems, industrial equipment, and aerospace and defense applications.

Applications often require dependable sealing under compression set, temperature cycling, and long-term environmental exposure.

Speak with an Applications Engineer

Proper material selection and compression design are critical to gasket performance and service life.

Contact our team to discuss your silicone sponge sealing requirements and determine the right solution for your application.

Custom fabricated. Engineering supported. Manufactured in the USA.