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PU Foam Pre-insulated Duct board

PU Foam Pre-insulated Duct board, also referred to as PU aluminum foil duct board or PU sandwich air duct panel, is a high-performance composite material specially engineered for HVAC heating, ventilation and air conditioning ductwork systems.

The panel features a three-layer bonded composite structure:

Two outer faces: Heavy-duty aluminum foil, available in smooth or embossed finishes.

Central core: Rigid polyurethane (PU) foam, serving simultaneously as structural reinforcement and thermal insulation

Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 45-50kg/m3
Aluminum Thickness: 0.06mm or 0.08mm
Aluminum Color: Silver
Packing: 10 sheets/ package
Loading Capacity: 710 sheets/ 40'HQ (packed with plastic bags)
660 sheets/ 40'HQ (packed with cardboard box)

Core Technical & Physical Properties of PU Foam Pre-insulated Duct board

Technical Parameters	Typical Value / Standard	Engineering Significance
Density (Core Foam)	45-55kg/m3	Balances lightweight design with excellent compressive structural strength.
Thermal Conductivity	≤0.022w/m.k	Extremely low. Outperforms traditional glass wool (~0.040), improving thermal insulation by nearly 40%.
Fire Rating	Class B1 (GB 8624)	Meets fire safety and flame retardant requirements for most commercial and residential buildings.
Closed Cell Ratio	≥95%	Effectively blocks water vapor penetration, preventing internal mold and performance degradation.
Working Temperature	-60℃--+80℃	Adapts to various harsh environments, from extreme cold to high-temperature air transmission.

Environmental Friendliness of PU Foam Pre-insulated Duct board

Our PU Foam Pre-insulated Duct boards are manufactured from fully eco-friendly, green raw materials that comply with international environmental standards.

The finished product releases no toxic or hazardous volatile substances during installation and long-term usage, while featuring ultra-low formaldehyde levels far below global safety thresholds.

Free from irritating odors and harmful chemical emissions, the material delivers outstanding safety and superior indoor air quality for occupants.

It is perfectly applicable to indoor ventilation and air duct systems of all types of occupied spaces, including residential apartments, office complexes, shopping malls, schools, hospitals, hotels and other public and commercial buildings, creating a non-toxic, healthy living and working environment for everyone.