Thanks to its excellent products and quality services, UNT Duct is one of the leading pu insulation duct board manufacturers and suppliers in China. Welcome to buy the high quality and customized products from our factory. We will offer you the best service and fast delivery.
PU Insulation Duct board
Fabricated with high-performance PU foam as the core substrate, PU Insulation Duct board are lightweight composite materials that merge thermal insulation capacity, structural mechanical strength and certified fire-proof properties into a monolithic assembly, seeing broad application in HVAC construction works.
The modular all-in-one duct solution minimizes system energy wastage, accelerates on-site assembly progress and preserves steady ventilation efficiency over long-term operation.
Structure: Silver Aluminum/ PU Foam/ Silver Aluminum
Size: 3950*1200*20mm
Foam Density: 40-45kg/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)
Air Tightness Performance of PU Insulation Duct board
Air tightness stands as one core competitive advantage of our integrated PU Insulation Duct board.
All duct joints are equipped with high-quality industry-grade environmental sealants alongside purpose-engineered matched connecting accessories, which are precisely dimensioned to eliminate assembly gaps during on-site installation.
Thanks to the matched sealing structure, the finished ductwork can reach close-to-full airtightness after complete splicing.
Effective containment of air leakage avoids cold/heat loss from inside the duct to ambient surroundings, lowers extra load on air conditioning and ventilation equipment, and steadily improves the long-term running efficiency of the whole ventilation system while helping end users slash ongoing operational power costs.
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How to make PU Insulation Board Straight Ducts?
1. Marking & Tracing: Trace the required duct profile onto the insulation panel.
2.Cutting: Perform 45° miter cuts along panel edges for seamless corner assembly.
3.Gluing: Spread adhesive evenly over the panel's outer bonding surfaces.
4.Folding: Crease and fold panels along pre-scored grooves to shape complete duct casings.
5.Taping for Airtightness: Wrap all assembled duct seams with aluminium foil tape to secure air tightness.
6.Flange Gluing: Coat bonding areas between duct body and connecting flanges with adhesive.
7.Bracket Mounting: Fix steel angle brackets at designated installation positions.
8.Edge Reinforcement: Fit PVC or aluminium flanges onto all four peripheral sides of the duct for structural reinforcement.
9.Final Sealing: Inject silicone sealant into key critical joints to boost waterproofing and long-term durability.
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