Silicone Sponge Rubber Products

Key Features

Wide Operating Temperature Range
Excellent Weather Sealing
Low Compressive Forces
Outstanding Compression Set Resistance
Durability in Extreme Conditions
Versatility in Applications
Customizable Fabrication Processes

Silicone Sponge Rubber Products: Versatile Solutions for Sealing, Cushioning, and Insulating

In a wide range of industrial applications, silicone sponge rubber products earn renown for their versatility and reliability.Composed of a unique blend of silicone polymers and closed-cell sponge structure, these products offer exceptional sealing, cushioning, and insulating properties. Silicone sponge rubber is made from gum-based polydimethylsiloxane (PMDS), a silicone elastomer that is expanded at the time it is heat cured to create a closed cell sponge structure. This process is similar to adding yeast to bread to make it rise. Which results in a material that is soft, flexible, and filled with compressible air pockets. At Exactseal, we specialize in manufacturing high-quality silicone sponge rubber products that meet the diverse needs various industries.

Superior Sealing Performance

One of the key advantages of silicone sponge rubber products is their superior sealing performance. The closed-cell sponge structure of these products enables them to conform to irregular surfaces. This creates a tight and reliable seal against moisture, dust, and other environmental contaminants. Our sponge products offer the performance benefits of solid silicone but in a softer and more compliant form. They are known for their wide operating temperature range, excellent weather sealing with relatively low compressive forces, and outstanding resistance to compression set. This means they can maintain their original thickness even after compression, especially at higher temperatures. Whether used as door sponge seals, sponge gaskets, or marine hatch gaskets, these products provide excellent compression and recovery properties, ensuring long-lasting sealing performance.

Versatile Applications

Silicone sponge rubber products find application in a wide range of industries and sectors. At Exactseal, we use sponge rubber to create a variety of products, including gaskets and cushions. These products are ideal for severe weather sealing in outdoor environments, press relief pads, and various environmental cushioning and gasketing applications. They are also the preferred choice for industries. Which includes medical, pharmaceutical, and food processing due to their durability and resistance to extreme conditions. In the automotive industry, our products are used for sealing doors, hoods, and trunks to prevent water and noise intrusion. In the aerospace sector, they provide cushioning and vibration isolation for sensitive electronic components and equipment. Marine hatch gaskets made from silicone sponge rubber ensuring watertight seals on ship hatches. While sponge gaskets in HVAC systems provide thermal insulation and noise reduction.

Custom Solutions

At Exactseal, we understand that every application has unique requirements. That’s why we offer custom solutions tailored to our customers’ specific needs. Our experienced engineers work closely with clients to develop customized silicone sponge rubber products that meet their exact specifications. Whether you need a standard sponge gasket or a specialized door seal for a particular application. We have the expertise and capabilities to deliver solutions that exceed expectations. In addition to these, we also offer silicone sponge rubber products that can be fabricated into silicone sponge gaskets and cushioning pads. Our fabricating processes include die cutting, water jet cutting, flash cutting, adhesive lamination, strip slitting, and custom assembly. We also provide products with acrylic or silicone adhesive backing of choice.

Quality and Reliability

Quality and reliability are at the core of our manufacturing process. We use only the highest quality silicone polymers and employ state-of-the-art manufacturing techniques to produce silicone sponge rubber products that meet the most stringent industry standards. Additionally, our products undergo rigorous testing to ensure they meet our customers’ performance requirements and deliver consistent results in demanding environments.

Why Choose Exactseal?

Expertise: With decades of experience in the industry, we have the knowledge and expertise to deliver high-quality silicone sponge rubber products that meet our customers’ unique requirements.

Customization: We offer a wide range of customization options, including material selection, size, shape, hardness, and color. Get sponge rubber products for your needs form us by requesting a free quote now.

Quality Assurance: Our products undergo thorough quality control checks at every stage of the manufacturing process. This ensures that they meet the highest standards of performance and reliability.

Exceptional Customer Service: We commit to providing exceptional customer service, from initial consultation to after-sales support, ensuring a seamless experience for our customers.


ApplicationSealing, Insulation, Vibration Damping
Product NameSilicone Sponge Rubber
Hardness (Shore A)15 - 30
Material3-A Sanitary Grade Silicone, Food & Medical Grade (FDA 21, CFR177.2600 compliant), FDA Grade Closed Cell Silicone Sponge, NSF/ANSI 51 Approved, USP CL-VI Approved, UL-94 Compliant Silicone, Fire Retardant Silicone, Weather Resistant Silicone, X-Ray detectable, Thermally Conductive Silicone (Galss loaded), Electrically Conductive Silicone (Carbon loaded), Mil-Spec AA 59588, Petrochemical Resistant Fluorosilicone
ColourAvailable in a variety of colours


Sealing in Extreme Environments
Thermal Insulation in Electronics
Vibration Damping in Machinery
Gasketing in Automotive Industry
Cushioning in Packaging Applications
Insulation in HVAC Systems

Technical Information

Hardness (Shore A)15 - 30
Tensile Strength100 - 200 PSI
Elongation100 - 200%
Compression Set<10%
Temperature Range-60°C to +200°C
Water Absorption<5%
UV ResistanceExcellent
Ozone ResistanceExcellent
  • EPDM Closed Cell Sponge Cord

    EPDM Sponge Rubber Products