Description
PORON® 4701-50 Firm is a high-performance polyurethane foam engineered for industrial, electronic, and automotive applications requiring reliable sealing, cushioning, and impact protection. Its high-density structure delivers excellent resistance to compression set, ensuring long-term performance in demanding environments.
This closed-cell, microcellular foam maintains its shape, resilience, and energy absorption properties even under continuous compression and exposure to extreme temperatures. With low outgassing, excellent chemical resistance, and superior dimensional stability, PORON® 4701-50 Firm is ideal for gaskets, seals, shock absorption, and vibration isolation.
Key Benefits of PORON® 4701-50 Firm:
- High-density polyurethane foam for maximum durability and strength
- Excellent compression set resistance for long-term performance
- Superior energy absorption and impact resistance for shock and vibration damping
- Low outgassing and excellent environmental resistance for sensitive applications
- Maintains dimensional stability over time
- UL 94 HBF-rated for flame resistance
- Performs reliably in extreme temperatures (-40°C to 121°C)
- Resists water, chemicals, and environmental degradation
Common Applications:
- Gasketing and sealing in industrial and automotive applications
- Cushioning and impact protection for electronic devices
- Vibration isolation for machinery and equipment
- Thermal and electrical insulation
- Custom die-cut solutions for various applications
💡 Available in various thicknesses and densities to meet specific performance needs. Available for Die-Cutting and Lamination.
