Closed Cell Silicone Sponge

Over 2 Decades of Experience

Complete Custom Manufacturing

ISO 9001:2015 | AS 9100D | IATF 16949:2016

Made in the USA

When it comes to FDA Closed Cell Silicone Sponge Rubber, Elastostar Rubber Corporation stands out as the preferred choice for high-quality solutions across various industries. Our expertise in Silicone sponge rubber allows us to craft precision-engineered products designed for optimal flexibility, durability, and long-term performance.

The closed-cell silicone sponge rubber materials we utilize boast an extensive compression deflection rating, spanning from ASTM D 1056 2D1 soft density to ASTM D 1056 2D5 extra firm density, all while maintaining a temperature rating of – 85°F to 492°F for continuous use. 

Whether you need a closed-cell silicone sponge gasket for sealing applications or a closed-cell silicone sponge seal for insulation, Elastostar delivers solutions that meet the highest industry standards. Our closed-cell silicone sponge rubber is designed to perform in extreme conditions, offering superior resistance to temperature fluctuations, environmental factors, and mechanical stress.

Custom Silicone Rubber Solutions - Any Size, Any Shape

Closed Cell Silicone Sponge Rubber Key Features

Product Specifications

Our closed-cell silicone sponge is specially formulated to meet and enhance fire, smoke, and safety standards within the rail industry. 

Featuring exceptional resistance to UV, ozone, and general weathering, our silicone sponge serves as an effective gap or anti-rattle filler strip, providing reliable protection against the ingress of dust and moisture.

Grade: Application: Hardness: Manufacturing Capabilities:
• Food Grade (FDA 21, CFR177.2600)
• USP CL-VI
• 3-A Sanitary Standards
• NSF STD-51 Certified
• UL Approved
• A-A59588 (Formerly ZZR-765E), AMS 3195
• ASTM D 1056 2D1 soft density to ASTM D 1056 2D5
• ASTM D2000, Military/Industrial, and Commercial Specification.
• FDA Metal & X-Ray Detectable Silicone
• Platinum Cured Silicone
• Peroxide Cured Silicone
• High Temperature Silicone
• Fire Retardant Silicone
• EN45545-2
• NFPA 130
• Electrical Enclosure Seals
• Thermal Insulation
• Outdoor Lighting Gaskets
• HVAC Seals
• Door and Window Seals
• Outdoor Digital Signage
• Food Processing Equipment
• High-Temperature Sealing
• Oven Door Gaskets
• Pharmaceutical Equipment
• Lighting Fixture Gaskets
• Gap Fillers
• LCD Gaskets
• LED Lighting
• 20 Shore A up to 80 Shore A • Continuous Extruded Profile
• Hot Splice Endless Ring
• Hot Splice Vulcanized Frame Gaskets

Our Accreditations

Specialized Grades of Closed-Cell Silicone Sponge Rubber

In addition to our standard offerings, we provide specialized closed-cell silicone sponge rubber materials designed to meet the requirements of demanding applications and diverse environments. These grades ensure compliance with industry standards while catering to the evolving expectations of our customers across various industries.
Our range includes:

✔ V-0

NFPA-130 & UL94V0, EN45545-2: Designed to meet stringent fire safety regulations, this Silicone sponge rubber grade complies with NFPA-130, UL94V0, and EN45545-2 standards. It is ideal for applications where flame resistance is critical, such as in public transportation, aerospace, and electrical enclosures.

✔ THT

High Temperature (+270°C): Engineered for extreme heat resistance, this grade can endure temperatures up to +270°C, making it a preferred choice for high-temperature sealing applications in automotive, industrial ovens, and aerospace industries.

✔ FDA – Food Grade

Our FDA Closed Cell Silicone Sponge Rubber is fully compliant with FDA regulations, making it suitable for food-grade applications in food processing, beverage production, and pharmaceutical sealing. This grade ensures safe contact with consumables while maintaining durability and flexibility.

✔ LCH – Low Smoke & Toxicity

Developed for applications where minimizing smoke and toxicity is crucial, this grade is ideal for use in confined spaces, public transportation, and medical environments. It ensures compliance with low-smoke emission standards while maintaining the integrity of closed-cell silicone sponge gaskets and seals.

Applications of Closed-Cell Silicone Sponge Rubber Seals, Gaskets

  • Electrical Enclosure Seals
  • Thermal Insulation
  • Outdoor Lighting Gaskets
  • HVAC Seals
  • Door and Window Seals
  • Outdoor Digital Signage
  • Food Processing Equipment
  • High-Temperature Sealing
  • Oven Door Gaskets
  • Pharmaceutical Equipment
  • Lighting Fixture Gaskets
  • Gap Fillers
  • LCD Gaskets
  • LED Lighting

Why choose Elastostar for Closed-Cell Silicone Sponge Rubber?

Expertise in Silicone Rubber Manufacturing

Elastostar boasts a wealth of experience in manufacturing closed-cell silicone sponge rubber, ensuring top-quality materials that meet rigorous industry standards. Our advanced extrusion technology and strict quality control processes guarantee high-performance products for various industrial applications.

Specialization in Extruded Rubber Solutions

As specialists in custom extruded closed-cell silicone rubber, we provide precision-crafted profiles tailored to meet diverse industry requirements. Our expertise in rubber extrusion allows us to develop unique shapes and configurations that deliver superior sealing and insulation properties.

Leading Closed-Cell Silicone Sponge Tubing Manufacturer

As a top closed-cell silicone sponge tubing manufacturer, Elastostar is dedicated to delivering cutting-edge solutions for industries requiring precision sealing and insulation. Our extensive production capabilities allow us to offer customized options that cater to specific performance needs.

Premium Quality and Compliance

Elastostar is known for producing closed-cell silicone sponge tubing that meets the highest standards of safety, performance, and durability. Our materials undergo strict testing to ensure compliance with regulatory requirements, making them ideal for sensitive applications such as medical, food processing, and electronics.

Versatile Applications Across Industries

Elastostar’s Silicone sponge rubber is designed to perform across a variety of industries, including: ✔ Automotive and aerospace sealing
✔ Pharmaceutical and medical-grade sealing
✔ Outdoor lighting and HVAC systems
✔ Thermal insulation and vibration damping We provide customized solutions to match industry-specific needs, ensuring durability and superior performance.

Custom Solutions for Unique Applications

Understanding that every application is different, Elastostar offers closed-cell silicone sponge for food-grade applications, ensuring compliance with FDA regulations for use in food and beverage processing environments. Whether you need tubing, gaskets, or seals, our custom solutions provide the flexibility and reliability required for high-performance applications.

Precision in Rubber Extrusion

Our state-of-the-art manufacturing process ensures custom extruded closed-cell silicone rubber products that meet precise specifications. Whether you require tubing, gaskets, or seals, our commitment to quality and performance guarantees high-precision solutions for your industry.

FAQ's

Closed cell sponge rubber refers to a type of sponge rubber with sealed, non-interconnecting cells. These cells are closed off from one another, preventing the passage of air, water, or other substances. It offers excellent sealing properties and is commonly used in applications requiring insulation, gaskets, and vibration dampening.

Silicone sponges find versatile applications in various industries. They are used for electrical enclosure seals, thermal insulation, gaskets, gap fillers, and as vibration dampeners. Their properties make them ideal for applications where flexibility, resistance to extreme temperatures, and sealing effectiveness are crucial.

The main distinction lies in the structure of the cells. Open cell silicone has interconnected cells, allowing air and fluids to pass through. Closed cell silicone, on the other hand, has sealed cells, making it impermeable to liquids and gases. Closed cell silicone is preferred for sealing applications.

Silicone sponge rubber is a flexible and compressible material made from silicone rubber. It is characterized by a network of closed cells, providing a combination of flexibility, resilience, and sealing capabilities. This material is widely used in manufacturing custom and standard size extruded rubber profiles / gaskets for various industrial applications.

Silicone sponges are easy to clean. All you need to do is rinse them with warm water and mild soap. For stubborn residues, you can use a gentle scrub brush. Make it dry before reuse.

The lifespan of a silicone sponge depends on usage and maintenance. With proper care, including regular cleaning and avoiding harsh chemicals, silicone sponges can last for an extended period, making them a durable choice.

Yes, silicone sponges, especially closed cell varieties, are inherently waterproof. The closed-cell structure prevents the absorption of water, making them effective for applications where water resistance is crucial.

Yes, silicone foam is typically a closed cell. This closed-cell structure contributes to its water-resistant and insulating properties, making it suitable for various sealing and insulation applications.

Yes, silicone sponges are highly effective in applications requiring sealing, insulation, and vibration dampening. Their unique properties, such as flexibility and resistance to extreme conditions, make them a reliable choice in various industries.

Closed cell medium density silicone sponge refers to a specific type of silicone sponge with a moderate level of density and a sealed cell structure. This type of silicone sponge is often used in applications where a balance between flexibility and compression resistance is required, providing reliable sealing solutions in industrial settings.

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Elastostar Rubber Corporation is an industry leader in silicone manufacturing to help our customers in achieving sustained profitable growth as a problem solver and provider of high-quality products and services.

We provide design, engineering and manufacturing of elastomer products to our customers globally backed by our streamlined and innovative supply chain compliant with global and regional regulatory requirements.