China's Largest HVAC Duct Board Manufacturer
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Insulated Fiberglass Ductboard | Formaldehyde-Free, Mold-Resistant HVAC Duct Solution
Our rigid fiberglass HVAC duct board (also commonly referred to as fiberglass duct panel, insulated fiberglass ductboard, fibreglass duct board, or fiber glass duct board across global markets) is manufactured with non-combustible glass wool as the core material, laminated with a range of exterior facings — including FSK (Foil-Scrim-Kraft), aluminum foil, and color-coated steel — using high-performance adhesive.
This premium fiberglass air duct board is widely specified for central HVAC and air conditioning systems with strict requirements for sound attenuation, thermal insulation, and antimicrobial performance. As a factory-direct fiberglass duct board for sale, it delivers consistent, code-compliant performance for both commercial and industrial ductwork projects.
Rigid Fiberglass HVAC Duct Board – Key Features
Superior Fire Resistance
As a UL 181 Class 1 fiberglass duct board for HVAC applications, the core material and surface liners are bonded with high-strength adhesive to deliver industry-leading fire performance. This fire-rated duct board is widely specified for hospitals, metro systems, industrial plants, and high-occupancy commercial buildings where fire safety is a mandatory requirement.
Built-in Sound Attenuation
This insulated fiberglass duct board features a porous ultra-fine glass wool core that acts as an integrated in-line silencer. It generates negligible secondary noise, eliminating or reducing the need for bulky standalone silencers and effectively lowering ambient noise levels inside ventilation systems.
Excellent Thermal Insulation
Our rigid fiberglass duct board boasts extremely low thermal conductivity for reliable long-term thermal performance. The exterior can be finished with FSK facing, aluminum foil, or color-coated steel for enhanced heat reflection and moisture resistance. Test data shows it reduces the duct’s overall heat transfer coefficient by approximately 25%.
Pressure & Fatigue Durability
This high-density fiberglass duct panel has excellent elasticity and fatigue resistance, which effectively absorbs and relieves mechanical stress generated during continuous HVAC system operation. It maintains structural integrity even under long-term air pressure fluctuations and cyclic temperature changes.
Energy Efficient & Cost Effective
As a factory-direct fiberglass duct board for sale, this product delivers reliable long-term energy savings at a competitive material cost. Its lightweight rigid design enables simple, fast, and hassle-free on-site fabrication and installation, cutting on-site labor time by up to 40%.
Wide Range of Applications
This versatile fiberglass AC duct board is ideal for metro stations, high-speed railway stations, hospitals, office buildings, industrial plants, data centers, and other commercial and industrial scenarios. It is also a standard choice for centralized air conditioning duct systems in public and institutional buildings.













Why Choose Us
China's Largest HVAC Duct Board Manufacturer | Guibao New Materials · Est. 1984
Rich Industry Experience
With over 40 years of experience in the HVAC industry, we have completed more than 10,000 projects worldwide.
Strong Production Capacity
We run 10 advanced automated production lines with a daily capacity of 30,000 sq.m, ensuring reliable quality and on-time delivery for large orders.
Professional Technical Team
Our experienced engineering team provides one-stop customized solutions and full-process professional technical support for all your project demands.
Competitive Factory Price
As a direct manufacturer without middlemen markup, we offer genuine factory direct prices, helping you save up to 20% cost compared with trading companies.
Comprehensive After-sales Service
We provide complete after-sales support, including on-site installation guidance, professional technical training and efficient problem solving anytime.
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