Phenolic foam air duct Material Composition

Core material: Phenolic foam is used. It is made from phenolic resin through a foaming process, featuring a closed - cell structure with tiny air pores. It has a low thermal conductivity and excellent thermal insulation performance.

Surface layer: Both sides of the phenolic foam are laminated with aluminum foil and color - coated steel sheets. Aluminum foil has good moisture resistance, reflectivity, and corrosion resistance, which can prevent moisture from entering and reflect heat to further enhance thermal insulation. Color - coated steel sheets have high strength and good appearance, making the air ducts more durable and giving them a neat and attractive look.

Phenolic Foam Air Duct

Phenolic Air Duct Panel

Phenolic Aluminum Duct

Phenolic Ductwork

Phenolic Foam Pre-insulated Duct

Performance Characteristics

Excellent Fire Resistance: Phenolic foam is highly flame - retardant. Ducts made from it meet national B1 - class flame - retardant standards, with some reaching A1 - class non - combustible standards. In fires, it delays flame spread, reduces smoke, and buys time for evacuation and rescue.

Superior Thermal Insulation: With ultra - low thermal conductivity (0.02-0.03W/(m・K))-much lower than galvanized steel or fiberglass ducts-it minimizes air - conditioning heat loss, boosts energy efficiency, and cuts operating costs.

Good Sound Insulation: The porous phenolic foam interlayer in duct walls offers excellent sound absorption, blocking air - conditioning unit noise effectively. No extra sound - absorbing accessories (e.g., covers, elbows) are needed.

Lightweight & Easy Installation: Weighing ~1.4kg/㎡ (1/5 of 0.8mm galvanized steel ducts), it reduces building load. Supports every 4m provide sufficient stability, simplifying transport and installation.

Durable & Eco - friendly: With a 20 + year lifespan (3x longer than traditional ducts) and 60% - 80% reuse rate, it outperforms barely reusable traditional ducts in economy and environmental friendliness.

Hygienic Compliance: Aluminum foil - sealed surfaces prevent internal dust/fibers and secondary pollution. No inner condensation or rust makes it ideal for clean environments like pharmaceuticals and hospitals.