

PORON® 40V0 Flame-Retardant Polyurethane Foam
Modern devices demand materials that meet strict flame requirements without sacrificing performance. PORON® 40V0 was created for exactly that: a soft, highly compressible polyurethane foam that achieves UL94 V-0 while delivering long-term sealing and cushioning performance.
At a glance: UL94 V-0, non-halogenated flame retardants*, siloxane-free (D3–D10), excellent compression-set resistance, and strong low-frequency acoustic absorption.
Why engineers choose PORON® 40V0
IEC defines “halogen-free” as <900 ppm Cl or Br, and <1500 ppm total halogens.
Where PORON® 40V0 fits best
Consumer & industrial electronics
soft, UL94 V-0 foam for gap-filling, cushioning and gasketing around sensitive boards and modules; siloxane-free chemistry helps mitigate migration near electronics.
Telecom/datacom equipment
enclosure pads and anti-rattle cushions with superior low-frequency sound absorption to reduce resonance.
Appliances & small devices
V-0 compliance plus long-term compression-set resistance for seals and spacers that keep their force over time.
Lighting & control gear
soft gap-fill and cushioning around drivers and housings, supported by V-0 rating.
Note: PORON® 40V0 is designed to meet stricter flame requirements across markets, combining performance and compliance. Validate suitability in your specific design.
Technical highlights (typical values)
Note: Values are typical and not for specification limits; confirm suitability in your design.








