🔥 Built to Withstand 350°C — The True Meaning of Fire Resistance
A single cable or hose can become a hidden fire accelerator. In industries like construction, power, and manufacturing, fire safety is never a small matter.
Many assume flame-retardant materials alone are enough — but standard sealants quickly char and fail under extreme heat, offering little real protection.
Let’s talk about SANVO’s FV-0 High-Temperature Flame-Retardant Sealant — engineered to stay rock-solid even under instant 350°C heat.
🔬 Lab Test: Standard Sealant vs. SANVO FV-0
| Material | Result |
| Standard Sealant | Rapid charring, thin carbonized layer, unstable under heat |
| SANVO FV-0 | Dense, self-extinguishing carbon layer forms instantly; low back-surface temperature; structure remains stable |
💎 Why FV-0 Excels Under Fire
1️⃣ Structural Defense – “Carbon Armor” Formation
- Instant hardening: On contact with fire, the sealant expands and solidifies, forming a dense carbon shield.
- Structural lock: The carbonized layer resists airflow erosion and mechanical stress, maintaining integrity without cracking or collapsing.
- Long-term sealing: Even under continuous flames, it blocks gaps to prevent flame and toxic smoke penetration.
2️⃣ Thermal Defense – Advanced Heat Insulation
- Thermal barrier: The porous carbonized layer acts as an exceptional heat insulator, slowing heat transfer dramatically.
- Substrate protection: Reduces back-surface temperature, shielding cables, wood, and other flammables.
3️⃣ Chemical & Environmental Defense
- Halogen-free & low-toxicity: Does not release corrosive halogen gases during combustion.
- Aging resistance: Proven durability under long-term high-temperature conditions, maintaining adhesion and elasticity.
⏱ Result: More time for evacuation, containment, and rescue.
✅ How to Choose the Right Fire-Resistant Sealant
- Carbon layer quality – Does it form a firm, adhesive layer rather than flaky ash?
- Structural integrity – Can it remain intact without cracks under standard fire tests?
- Thermal insulation – Does it effectively reduce temperature rise on the opposite side?
- Certification – Has it achieved authoritative ratings such as FV-0?
🔧 Engineering Applications
🏗 Construction: Cable trays, pipe joints, window & door gaps
⚙️ Electronics: Wire harnesses, connectors, PCB fire sealing
🏭 Manufacturing: Machine guards, flexible pipelines, conveyor systems
🏠 Home: Kitchens, air conditioners, sockets — fire protection in daily life
Choosing a high-temperature, flexible, professional flame-retardant sealant isn’t just about performance — it’s about responsibility for lives and assets.
Because in fire safety, details decide outcomes.
💬 Open for discussion:
- Have you ever faced challenges with sealants failing under high heat?
- How do you evaluate the role of carbonization in fire protection?
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