Polyurethane Foam
PORON® 4701-30 (Very Soft)
Very soft polyurethane foam for flexible gasketing, gap filling, and cushioning applications
PORON® 4701-30 is a very soft, easily compressible microcellular polyurethane foam designed for flexible gasketing, gap filling, and spring-style applications. It is a strong choice for applications that need softness, conformability, and long-term performance.
For designs that require low closure force, dependable recovery, and flexible sealing, PORON® 4701-30 offers excellent compression set resistance and durability across a range of demanding applications.
Why Choose PORON® 4701-30
- Very soft, easily compressed polyurethane foam for flexible gasketing and gap-filling designs
- Available in 15, 20, and 25 lb/ft³ density options
- Density-specific thickness availability from 0.031 in. to 0.500 in.
- Excellent compression set resistance for long-term sealing and cushioning performance
- Good fit for applications requiring softness, flexibility, and low compression force
- Strong material choice for spring applications and soft energy-management designs
Common Applications for PORON® 4701-30
PORON® 4701-30 is best suited for applications that need soft compression, surface conformity, and dependable long-term recovery.
- Flexible gaskets and seals
- Gap-filling components
- Cushioning pads and soft shock-management parts
- Vibration-isolation components
- Sound-dampening parts
- Spring applications requiring low closure force
Available 4701-30 Material Options
PORON® 4701-30 is available in standard and supported constructions.
- PORON® 4701-30 Very Soft
- PORON® 4701-30 Very Soft Supported
- Supported constructions may include 4701-30-20064 P, 4701-30-25037 P, and 4701-30-25047 P
Data Sheets
Custom PORON® 4701-30 Gaskets, Seals & Converted Parts
SRP converts PORON® 4701-30 into custom die-cut gaskets, seals, cushions, and gap-filling components built to your application requirements. Whether you need low closure force, flexible sealing, vibration control, or soft cushioning, our team can help match the material, thickness, adhesive, and part configuration to your design.
Send us your drawing, part dimensions, material requirements, adhesive needs, and annual usage, and we’ll review the application and recommend the right PORON® 4701-30 solution.
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Need Custom PORON® 4701-30 Gaskets or Converted Parts?
SRP converts PORON® 4701-30 into custom die-cut gaskets, seals, cushions, and gap-filling components for applications that need softness, conformability, and long-term performance. Submit your drawing, dimensions, thickness requirements, adhesive needs, and estimated annual usage, and our team will review your project and follow up with a quote.