Fireproof color for cable trays

Fireproof cable tray coatings are typically available in neutral or industrial colors such as gray, white, or red, depending on the product, with intumescent paints forming a protective char under fire exposure.

Types of Fireproof Coatings

Intumescent Coatings: These are reactive paints applied directly to cable trays. On exposure to fire, they expand to form an insulating char that slows heat transfer and prevents flame spread. Examples include ALTIC 007, which is water-based, halogen-free, and eco-friendly, providing up to 4 hours of circuit integrity while being resistant to water, oil, alkali, and UV radiation . FS711 is another option suitable for indoor cable trays, often used with complementary fireproof boards or sealants . Fire Wraps: Passive protection systems that encase the tray with multilayer barriers, often aluminized for reflective heat protection. Wraps are ideal for retrofit projects or irregular tray routing but are more disruptive during maintenance .

Color Considerations

Fireproof coatings are generally available in neutral industrial colors such as gray, white, or red, which are chosen for visibility, corrosion resistance, and compliance with safety standards . The color does not affect fire performance but may be specified for aesthetic, inspection, or safety marking purposes. Some coatings allow topcoats for decorative or environmental protection while maintaining fire resistance.

Application and Compliance

• Surface Preparation: Clean trays of dust, oil, and rust; sandblasting or acid washing may be required .
• Primer and Coating: Use primers with strong adhesion and anti-corrosion properties. Apply fireproof coatings evenly, controlling thickness to meet design specifications .
• Inspection: Check for uniform color, absence of cracks or bubbles, and proper adhesion. Thickness and fireproof performance should comply with national or project-specific standards .

Maintenance

Regular inspection is essential to ensure the coating remains intact, especially in outdoor or industrial environments. Damaged areas should be repaired according to manufacturer guidelines to maintain fire protection . Summary: For fireproof cable trays, choose intumescent coatings or fire wraps with neutral industrial colors like gray, white, or red. Ensure proper surface preparation, application, and inspection to meet fire safety standards and maintain long-term durability .