
Rogers PORON 4701-30 Polyurethane Foam | Very Soft High-Resilience Microcellular Cushioning - Genuine Rogers - STK
STK's Genuine Rogers PORON 4701-30 is an elite-tier, microcellular polyurethane elastomeric foam configured in a "Very Soft" density profile. Engineered by Rogers Corporation, this specialized open-cell formulation is packed with dense, microscopic air pockets designed to absorb harsh impact energy, damp high-frequency acoustics, and provide long-lasting environmental dust seals in space-constrained device housings.
Unlike lower-grade PE or PVC packaging foams that suffer from severe cell collapse, drying out, or turning into a flat, useless strip after being squeezed for a short period, PORON 4701-30 maintains its original thickness and springiness over decades of continuous use. It emits zero corrosive outgassing, will not turn brittle over time, and remains the global gold standard for critical sealing and shock isolation in delicate technological hardware.
Product Features
Excellent Compression Set Resistance
Maintains sealing force and dimensional stability even after long-term compression, helping extend product service life.
Superior Cushioning Performance
Absorbs impact and vibration effectively, protecting sensitive electronic and mechanical components.
Soft & Highly Conformable
Adapts easily to uneven surfaces while maintaining reliable sealing performance.
Long-Term Recovery
Recovers quickly after repeated compression cycles, reducing performance degradation over time.
Clean Die-Cutting Performance
Suitable for precision die-cutting and automated assembly
processes in high-volume manufacturing environments.
Product Applications
Handheld Electronic Devices:
Providing internal shock pads and window display gaskets for rugged smartphones, barcode scanners, and GPS units.
01
Smart Wearables & Audio Components:
Serving as soft dust barriers and micro-acoustic dampening gaskets inside smartwatches, VR headsets, and premium wireless headphones.
02
Automotive Infotainment Displays:
Sealing gap spaces and preventing annoying rattles behind large curved touchscreens and digital instrument clusters.
03
Medical Diagnostic Instrumentation:
Isolating sensitive internal pumps, laser boards, and hard drives from external vibration and impact shocks.
04
Flexible Industrial Processing & Converting
Legendary Compression Set Resistance:
The molecular structure refuses to stay crushed. Even under long-term compression inside tight enclosures, it repeatedly bounces back to its nominal thickness, guaranteeing a permanent seal that never loosens or leaks dust.
Elite Impact Energy Dissipation:
It acts like a premium mechanical sponge. Upon sudden mechanical drops or violent external slaps, the dense micro-cells collapse intelligently to capture and trap the kinetic shockwave, shielding interior glass displays and PCB chips from fracturing.
Incredibly Compliant & Conformable:
Being in the "Very Soft" class, it requires minimal force to compress. This allows the foam to easily mold itself around complex interior electronic contours and variable gaps without putting excessive, cracking pressure on delicate outer housings.
Clean Outgassing & Non-Fogging Matrix:
It contains no plasticizers or volatile chemicals. It won't fog up sensitive optical camera lenses, leave oily shadows on LCD displays, or cause chemical corrosion on nearby copper circuits.
Equipment




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