Flame-Retardant Silicone Sponge Extrusions
expanSil™ V-0
Flame-retardant closed-cell silicone sponge extrusions designed for low smoke toxicity and high flame resistance
expanSil™ V-0 is a flame-retardant, closed-cell silicone sponge extrusion family formulated for applications where high flame resistance and low smoke toxicity are critical. Through our preferred supplier relationship, SRP helps customers identify the right V-0 grade and source the material for demanding environments such as mass transit, aerospace, automotive/EV, and electronics.
Designed for safety-critical sealing applications, expanSil V-0 maintains reliable performance across a wide temperature range while offering excellent resistance to ozone, UV, and weathering. The family is available in multiple firmness levels, allowing engineers to balance compression force and sealing performance.
Why Choose expanSil™ V-0
expanSil V-0 combines closed-cell silicone sponge sealing performance with flame-retardant properties for applications where fire safety and low smoke toxicity are key design requirements. It is a strong fit when the material decision is being driven by flame performance rather than broad-use sealing alone.
- Flame-retardant closed-cell silicone sponge extrusion family
- UL94 V-0 vertical burn rated
- Operating temperature range from -60°C to 230°C (-76°F to 446°F)
- Low smoke toxicity for safety-critical applications
- Excellent resistance to ozone, UV, and environmental exposure
- Available in super-soft through firm densities to match sealing force needs
- Low compression set for long-term sealing performance
- Offered as cords, profiles, strips, and sections
- Available with pressure-sensitive adhesive (PSA), joined rings, and gaskets
- Designed for applications with demanding flame and smoke performance requirements
Common Applications for expanSil™ V-0
expanSil V-0 is commonly considered for applications that need dependable closed-cell sealing performance in flame-critical environments where low smoke toxicity and high flame resistance matter.
- Mass transit sealing systems
- Aerospace interior and exterior sealing
- Automotive and EV sealing applications
- Electronics and electrical enclosures
- Flame-critical environments requiring low smoke toxicity
- Sealing profiles exposed to elevated temperatures and harsh environments
Available V-0 Grades
expanSil V-0 is available in multiple firmness levels to support different sealing-force and compression requirements. Review the options below to find the best fit for your application.
Not sure which V-0 grade is the best fit? Tell us about the application, required flame performance, sealing force, operating environment, and whether PSA backing or a specific format is needed.
Need Help Sourcing the Right expanSil™ V-0 Grade?
Tell us about your application, operating temperature, sealing geometry, flame-performance requirements, environmental exposure, and any current material or part number you are replacing. SRP can help narrow the right V-0 grade and support the sourcing process through our preferred supplier.
Share your application details, performance requirements, existing part information, or a drawing, and our team will review your request and follow up with next steps.
Helpful details to include: application, temperature range, required flame rating or safety standard, sealing force, environmental exposure, desired format, existing grade, or drawing.
RELATED BLOGS
Need Help Sourcing expanSil™ V-0?
Tell us about your application, operating temperature, sealing geometry, flame-performance requirements, environmental exposure, and any current material or part number you are replacing. SRP can help narrow the right V-0 grade and support the sourcing process through our preferred supplier.