Product Overview
kSil® V-0 Soft Flame-Resistant Silicone Sponge — Technical Overview & FAQs
Product Overview
kSil® V-0 Soft Flame-Resistant Silicone Sponge is a closed-cell silicone sponge engineered for applications requiring soft compression, tight environmental sealing, and UL 94 V-0 flame resistance.
This grade provides a softer firmness than standard silicone sponge materials, allowing it to conform easily to uneven surfaces and seal effectively with lower clamping pressures, making it ideal for lightweight housings and delicate assemblies.
With its closed-cell structure, kSil® V-0 Soft resists water absorption, ozone, UV exposure, and long-term compression. It delivers stable performance across extreme temperatures, making it a preferred choice for electronics, lighting, transportation, EV battery systems, and industrial fire-protection seals.
Applications
Fire-resistant electronic enclosure gaskets
EV battery module and pack sealing
Outdoor and indoor environmental gaskets
LED lighting lens and housing seals
HVAC and appliance flame-rated seals
Low-compression fire barrier pads and insulation layers
Key Properties
Material Type: Closed-cell silicone sponge (soft firmness grade)
Flame Rating: UL 94 V-0 (self-extinguishing, low flame propagation)
Compression Force: Low — designed for light-to-medium fastening loads
Density: Lower density than standard silicone sponges for increased softness
Compression Set: Excellent long-term recovery
Temperature Range: –67 °F to +446 °F (–55 °C to +230 °C)
Water Absorption: Very low (closed-cell structure)
Environmental Resistance: UV, ozone, humidity, and weather-resistant
Chemical Resistance: Resistant to oils, solvents, and aging
Formats: Sheets, rolls, strips, die-cut gaskets, PSA-backed options
Compliance: UL 94 V-0 | RoHS | REACH
FAQs
What is kSil V-0 Soft Silicone Sponge used for?
It is used for low-pressure, flame-resistant sealing in electronics, EV battery systems, lighting enclosures, HVAC equipment, and industrial fire-safety applications.
How does the “soft” grade differ from super soft or medium density?
The soft grade provides a balanced level of compressibility — softer than medium-density but firmer than super-soft — making it ideal for gaskets that require gentle compression without collapsing.
Does this material meet UL 94 V-0?
Yes — it is UL 94 V-0 certified, meaning it automatically self-extinguishes and is approved for flame-critical electronic and mechanical applications.
Is this silicone sponge suitable for outdoor use?
Absolutely — it resists UV exposure, ozone, temperature cycling, and harsh weather, making it ideal for long-term outdoor use.
Can I get this material die-cut or PSA-backed?
Yes — H-O Products provides custom die-cut gaskets, precision-cut components, and adhesive-backed constructions for easy installation in production assemblies.
Contact H-O Products for kSil® V-0 Soft Flame-Resistant Silicone Sponge samples, die-cut gasket solutions, or technical support tailored to your fire-rated sealing needs contact us.
