Cable Fire Resistant Coating
Waterborne Intumescent Fire-Resistant Coating for Electrical Cables
Specifically designed for cable fire protection, this waterborne intumescent coating rapidly expands under fire to form a dense, uniform, sponge-like insulating layer. It effectively suppresses flame propagation and protects power, communication, and control cables while maintaining flexibility and electrical performance.
Popular application
Power cable
Communication cable
Cable tray
Key Features
• Designed for Cables: Ready-to-use, fast-curing, remains soft and elastic, suitable for bending and installation
• Waterborne & Eco-Friendly: Water-soluble, odorless, safe and environmentally friendly
• Thin Coating, High Efficiency: Strong adhesion, does not affect current carrying capacity or surface resistance of cables
• Intumescent Fire Protection: Expands 5–15 times to form a dense, uniform carbon layer for effective insulation and fire resistance
• Excellent Electrical Performance: Good insulation, corrosion-resistant, long-term protection
• Environmental Durability: Works from -20℃ to 80℃, resistant to moisture and aging
• High Stability: Maintains uniform texture during storage and application, ensuring long-term performance without clumping or settling
Excellent Frame Retardancy
High Stability
High Solid Content
Oil and Salt Resistance
Strong Flexibility
Applications
Scenarios
Data Sheet
Fire resistant class
1 Hour
Color
white /red
Expansion ratio
5-15 times
Density
1.3 g/cm³
Dry time
1mm / 4 Hour
Base material
Waterborne acrylic resin
PH
7-8
Working temperature
-20℃~80℃
Construction method
Spray or brush
Dry temperature
20℃~80℃
Storage temperature
0℃~28℃
Second layer time
2–4 hours
Storage life
12 months
FAQ
How does the fire protection painting work?
The firestop painting expands under heat to form a dense insulating layer, blocking flames and slowing heat transfer.
Can the fire resistant coating be used on all cables?
Yes, compatible with power cable, communication cable, and industrial cables including PVC, XLPE, and rubber-insulated wires.
What tools are needed?
Spray gun, brush, or roller; low-speed mixer for stirring. No special curing equipment required. Apply 2 layers, 2–4 hours apart.
What is the product form?
In barrel, 20kg/barrel
What is the coverage area per bucket of the fireproof material?
Coating Thickness: A 0.5-1 mm dry film is sufficient to achieve the fireproofing effect.
Coverage for a 20 kg bucket: Approximately 15 m² (with a 1 mm dry film).
This is a water-based product. Is its fireproofing performance reliable?
Being water-based only means that water is the dispersion medium; it does not indicate lower fireproofing performance. The true determinants of fireproofing performance are the intumescent flame-retardant system and the quality of the char layer, not whether the product is solvent-based or water-based.
Is a higher expansion ratio always better?
For cable fireproofing, greater importance is placed on:
Whether the char layer is dense
Whether it adheres closely to the cable
Whether it remains intact under flame wash
rather than on the expansion ratio number alone.
Will it lose effectiveness upon exposure to moisture?
No. the firestop coating utilizes low-migration flame-retardant raw materials, ensuring it is resistant to humidity, does not develop white residue, and does not powder during long-term use.
Does it affect cable bending or current-carrying capacity?
No. The coating film is flexible and does not affect cable bending or electrical performance.
What are the main application scenarios for fireproof coating?
It is mainly used in data centers, power plants, telecom base stations, rail transit, hospitals, petrochemical facilities, and other critical environments where cables serving core functions require enhanced fire protection.
more details, pls refer to FM Approvals 3971— the standard for fire protective coatings and wraps for grouped cables.