Rogers Corporation has launched PORON® 40V0 foam, a next-generation polyurethane foam designed to meet the growing need for flame-retardant, cost-effective, and highly conformable sealing solutions.
Unlike traditional polyurethane foams, PORON 40V0 delivers UL 94 V-0 performance in a thin, soft, compressible material. This makes it an ideal solution for procurement professionals and engineers balancing compliance, performance, and cost.
Why PORON® 40V0 Foam Matters
UL 94 V-0 Flame Rating in Thin Foam Gauges
Presents V-0 performance at 3–10 mm thicknesses, eliminating the need for thicker, rigid foams to meet compliance. Where customers need the higher level of flame protection, 40V0 is a step above the standard Poron which only meets the UL 94 horizontal burn test. The 40V0 can handle the tougher vertical burn test as well.
Soft, Gap-Filling Sealing Material
Maintains excellent compression set resistance, ensuring reliable performance over long-term use and repeated cycles.
Halogen-Free, Siloxane-Free Chemistry
Reduces contamination in sensitive electronics, improving safety and compliance.
Cost-Effective Alternative to Silicones
Delivers flame safety at a lower cost when moisture sealing or high-heat resistance is not the primary need.
Applications for PORON® 40V0
- Battery Energy Storage Systems (BESS): Cushioning and flame-rated seals between cells and modules.
- Electric Vehicles & Charging Infrastructure: Control modules, junction boxes, and chargers.
- Data Centers & Servers: Acoustic and vibration damping for fans and airflow systems.
- HVAC & Industrial Systems: UL 94 V-0 gaskets for vents, dampers, and housings.
PORON® 40V0 vs. Silicone Foam
| Property | PORON® 40V0 (Polyurethane) | Silicone Foam |
|---|---|---|
| Flame Rating | UL 94 V-0 (3–10 mm) | UL 94 V-0 (varied thicknesses) |
| Compressibility | Soft, highly conformable; excellent gap-filling | Soft to medium; good gap-filling |
| Compression Set | Excellent long-term seal force retention | Good to excellent depending on grade |
| Moisture Sealing | Moderate; not ideal for IP-rated waterproofing | Excellent; preferred for moisture/dust ingress protection |
| High-Temperature Resistance | Moderate | Excellent |
| Chemistry | Halogen-free, siloxane-free | Silicone elastomer; inherently stable |
| Typical Use-Case | BESS, EV/HEV, data centers, HVAC | Outdoor enclosures, high-heat zones |
| Relative Cost | Lower (cost-effective alternative) | Higher |
Selection tip: Use PORON® 40V0 for flame safety and cost efficiency. Use silicone foam when superior moisture sealing or high-temperature resistance is critical.
How Sealing Devices Adds Value
- Material Expertise: Guidance on whether PORON, silicone, or other elastomers best fit your needs.
- Custom Fabrication: Die-cutting, laminating, kitting, and adhesive backing for easy integration.
- Prototyping & Testing: Validate compression, thermal, and flame performance in your application.
- Trusted Supply Chain: As a Rogers Preferred Converter, we provide reliable availability and compliance assurance.
Request a PORON® 40V0 Sample or Start a Project
Ready to explore PORON 40V0 for your design? Discuss your application with our engineering team, request samples, or prototype custom parts.
Contact Sealing Devices Today