What Polyurethane Foam Gaskets Offer

Polyurethane Foam Gaskets offer durable, long-term sealing performance across a wide range of applications. Made from microcellular urethane, Rogers PORON® foam is highly versatile, available in varying grades from soft to firm to meet diverse sealing needs. Its open-cell structure provides exceptional resiliency, allowing it to maintain integrity even after repeated impacts. 

Despite its open-cell nature, Rogers PORON® polyurethane foam creates a reliable, water-tight seal, making it ideal for demanding gasketing applications.

Features & Benefits

  • Excellent Compression Set Resistance: Maintains shape and performance over time.
  • Low Outgassing & Non-Fogging: Free from plasticizers and chemicals that could contaminate sensitive devices.
  • Non-Brittle & Non-Corrosive: Will not crumble or corrode metals, ensuring reliable performance.
  • Inherently Flame Retardant: Meets UL HBF and MVSS 302 flammability standards without added flame retardants.
  • Wide Modulus Range: Available in a range from 2-90 psi @ 25% deflection for diverse design needs.
  • Chemical Resistance: Offers protection against various chemicals.
  • Easy to Fabricate: Die-cuts cleanly and adheres well with a variety of adhesives.
  • Versatile Thickness Range: Available in thicknesses from 0.012″ to 0.500″ (0.43mm to 12.7mm).

These characteristics make Polyurethane Foam Gaskets a reliable, flexible, and versatile choice for demanding sealing applications in a range of industries.

Potential Applications & Industries

Polyurethane Foam Gaskets are used in a variety of applications requiring durable, long-lasting seals. They are ideal for applications where compression resistance and resilience are key, such as cushioning & battery pads, vibration management, display protection, sound blocking & absorption, gap filling, and more. Their shock absorption and spring back also make them great for door gaskets.

These gaskets are widely used across industries like aerospace, electronics, military, and fluid power. Their ability to seal effectively while remaining resistant to chemicals and environmental factors makes them essential in high-performance applications and industries.

Design Specifics & How The Product Works

Polyurethane Foam Gaskets are crafted from a microcellular urethane material that is open-cell, allowing for high resilience and long product life. This structure enables the gasket to form a water-tight seal even while maintaining excellent compression set resistance. The flexibility in the material’s design ensures that it can adapt to different applications, offering versatile sealing performance.

What Makes Polyurethane Foam Gaskets So Effective? The effectiveness of Polyurethane Foam Gaskets stems from their open-cell design, which provides excellent compression resistance and durability while offering a reliable seal. The foam’s inherent flame retardancy, chemical resistance, and ability to withstand multiple impacts make it ideal for demanding environments, providing long-term sealing solutions across various industries.

 

Product Categories

Standard PORON® Polyurethane

  • Very Soft PORON® 4701-30: A very soft material, ideal for general purpose gaskets and gap-filling applications, providing excellent conformability and dust ingress protection.
  • Soft PORON® 4701-40: Soft yet versatile, suitable for a variety of cushioning and sealing applications with good vibration management and gap filling properties.
  • Firm PORON® 4701-50: A firm formulation offering reliable performance for applications requiring minimal gap filling and moderate vibration management.
  • Very Firm PORON® 4701-60: Very firm, designed for applications where less conformability is needed and minimal vibration management is sufficient.

 

Specialty PORON® Polyurethane

  • Very Soft, Enhanced Sealability PORON® AquaPro™ 4701-37: Enhanced water sealing capabilities in a very soft material, ideal for applications requiring superior water-tight seals and excellent conformability.
  • Soft, Enhanced SealabilityPORON® AquaPro™ 4701-41: Soft, enhanced sealability material offering greater closed-cell content for demanding vacuum sealing applications or low closure-force requirements.
  • PORON® 4701-V0-M Medium (UL94 V-0): Medium firmness foam specifically formulated to meet all requirements under UL94 V-0 flammability rating.
  • Soft, EV Battery Pad PORON® EVExtend 4701-43: A versatile battery pad material designed for Electric and Hybrid-Electric Vehicle batteries, offering a thickness range of 0.039 to 0.118 inches and a density range of 7 to 20 lb/ft³. It provides consistent pushback force throughout the battery life, ideal for pouch applications requiring high conformability and excellent pressure management.
  • Extra Firm, EV Battery Pad PORON® EVExtend 4701-71: Specifically crafted for higher energy density applications in rigid prismatic and solid state batteries, this material features a density of 20 to 25 lb/ft³ at a 0.188-inch thickness. It ensures superior compression set resistance and stress relaxation properties for reliable, long-term performance under consistent, higher pressure.

PORON® ShockSeal™ 4790-79: Offers specialized impact protection, ideal for applications requiring cushioning against shocks and bumps

Products Bought With Polyurethane Foam Gaskets

Rogers BISCO® Silicone Foam
Silicone foams that come in a wide range of cellular, solid, and specialty materials that can be fabricated into gaskets, seals, cushions, and more.

Pressure Sensitive Adhesives
Tapes that meet a wide range of unique adhesive needs, distributing stress evenly across the bond area. 

Our Value Added Services

At Sealing Devices, we provide more than just high-quality Polyurethane Foam Gaskets. Our team of Application Engineers collaborates closely with customers to design custom solutions tailored to their specific needs. Whether you require custom sizes, materials, or configurations, we are here to ensure that our gaskets meet your exact specifications, backed by expert support throughout the process.

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