China Glass Wool Manufacturer for Bulk & Project Supply
Customized thickness, density, size and facing options for thermal and acoustic insulation applications.
✓ Direct Factory...
Glass Wool Insulation
Premium Industrial Glass Wool Insulation: Technical Specifications & Global B2B Procurement Guide
Glass wool insulation is a high-performance, lightweight fibrous thermal and acoustic material engineered from recycled glass and quartz sand. Its intricate micro-pore structure effectively traps still air to restrict convective heat transfer while converting airborne sound waves into dissipated kinetic energy.
Designed for demanding building envelopes, HVAC duct networks, and industrial equipment, this material integrates thermal efficiency, Euroclass A1 non-combustibility, and superior acoustic absorption into a single, cost-effective solution.
-
![Glass Wool Insulation Board Manufacturer]()
-
![Glass Wool Insulation Board]()
Glass Wool Insulation BoardGlass wool insulation board is a flat fiberglass panel for partition walls, suspended ceilings, HVAC rooms, and equipment enclosures.read more
Common thicknesses range from 25 to 100 mm. Density is... -
![Foil Faced Glass Wool Board]()
Foil Faced Glass Wool BoardFoil Faced Glass Wool Board combines a rigid glass wool panel with an aluminum-foil surface for duct exteriors, air-conditioning rooms, and clean ceiling areas.read more
The order is defined by... -
![Exterior Wall Glass Wool Board]()
Exterior Wall Glass Wool BoardProduct form: stiffer glass wool board for facade cavities. Exterior Wall Glass Wool Board is prepared for curtain wall backing, exterior wall insulation layers, and ventilated facade spaces.read more -
![Fire Resistant Glass Wool Board]()
Fire Resistant Glass Wool BoardProduct form: fire resistant glass wool board. Fire Resistant Glass Wool Board is prepared for fire-rated ceiling belts, partition cores, and smoke-control duct areas.read more -
![Centrifugal Glass Wool]()
Centrifugal Glass WoolCentrifugal Glass Wool is a spun-fiber insulation supplied in board, roll, or blanket form for walls, roofs, HVAC spaces, and acoustic rooms.read more
The selected form depends on the cavity shape... -
![Formaldehyde Free Glass Wool Board]()
Formaldehyde Free Glass Wool BoardProduct form: formaldehyde free glass wool board. Formaldehyde Free Glass Wool Board is prepared for schools, hospitals, clean interiors, offices, and public ceiling or wall work.read more -
![Waterproof Glass Wool Insulation]()
Waterproof Glass Wool InsulationProduct form: hydrophobic glass wool insulation. Waterproof Glass Wool Insulation is prepared for roof cavities, exterior wall backing, humid plant rooms, and places with occasional moisture.read more -
![Glass Wool Acoustic Panels]()
Glass Wool Acoustic PanelsProduct form: glass wool panel for sound absorption. glass wool acoustic panels is prepared for meeting rooms, studios, machine rooms, corridors, and interior acoustic linings.read more -
![Glass Wool Insulation Roll]()
Glass Wool Insulation RollProduct form: flexible glass wool roll. glass wool insulation roll is prepared for roof bays, large ceiling areas, light partitions, and long duct surfaces.read more -
![Faced Glass Wool in Rolls]()
Faced Glass Wool in RollsProduct form: glass wool roll with facing. faced glass wool in rolls is prepared for metal building roofs, duct wraps, ceiling layers, and warehouse insulation.read more -
![Centrifugal Glass Wool Roll]()
Centrifugal Glass Wool RollProduct form: centrifugal glass wool roll. Centrifugal Glass Wool Roll is prepared for large-span roofs, workshops, ceiling grids, and continuous wall cavities.read more
Technical Specifications & Performance Data
| Property | Specification Value | Testing Standard / Notes |
| Material Composition | Centrifugal glass fibers with thermosetting binder | Inorganic, odorless, non-corrosive |
| Available Forms | Roll, Board, Blanket, Prefabricated Pipe Section | Customizable per project requirement |
| Density Range | 10 -- 100 kg/m3 | Varies by application load and structural need |
| Thickness Range | 25 -- 200 mm | Available in 5 mm increments |
| Thermal Conductivity | 0.032 -- 0.040 W/(m·K) | Measured at mean temperature of 25°C |
| Service Temperature | Up to 250°C | Dependent on facing material binder limits |
| Fire Performance | Euroclass A1 | Non-combustible (EN 13501-1) |
| Sound Absorption (NRC) | 0.80 -- 1.05 | Dependent on thickness and density |
| Water Repellency | >= 98% | Hydrophobic treatment applied |
| Standard Widths | 600 mm, 1200 mm | Customized cutting available |
Core Performance Characteristics
1. Thermal Efficiency
Mechanism: A dense network of fine fibers (4--7 um diameter) traps dry air, preventing convective heat loops.
Application Fit: Low thermal conductivity (0.032 -- 0.040 W/(m·K)) stabilizes internal temperatures in cold storage, commercial building envelopes, and HVAC distribution networks, lowering peak energy loads.
2. Fire Safety Compliance
Mechanism: Composed of inert inorganic silicates that do not support combustion.
Rating: Classified as Euroclass A1, meaning it generates no flame, negligible smoke, and zero toxic droplet runoff during direct flame exposure, protecting structural steel frameworks in high-occupancy facilities.
3. Acoustic Control
Mechanism: Open-cell porous matrix forces sound waves entering the material to dissipate kinetic energy through viscous friction against the fiber walls.
Performance: Achieves an NRC rating between 0.80 and 1.05, making it highly effective for recording studios, partition wall cavities, and industrial generator enclosures.
4. Moisture Management & Durability
Mechanism: Raw glass filaments are inherently non-hygroscopic. Integrated silicone-based hydrophobic additives yield a water repellency rate exceeding 98%.
Integrity: Resists sagging, rotting, or biological colonization. (Note: Vapor barriers must be specified on the warm side of the assembly in high-humidity climates to prevent condensation within the wall cavity).
Product Configurations & Customization
We manufacture complete product lines tailored to specific global installation methodologies:
Rolls & Blankets
Flexible formats utilized for large-scale steel warehouse roofs, attic insulation, and metal building purlin cavities.
Rigid & Semi-Rigid Boards
High-density variants (48 -- 100 kg/m3) designed for exterior curtain walls, sandwich panels, and mechanical equipment casing.
Pipe Sections
Pre-molded cylindrical shells engineered for industrial piping and chilled water line insulation.
HVAC Duct Wrap
Factory-faced blankets optimized for external wrapping of rectangular and circular sheet metal air ducts.
Available Factory Facings
To protect the insulation surface and provide vapor control, options include:
Aluminum Foil (FSK)
Reflective vapor barrier.
Kraft Paper
Standard breathable or semi-permeable retainer.
Black Tissue
Non-woven glass mat designed for exposed ceiling or acoustic plenum applications where fiber erosion must be prevented.
Primary Application Sectors
Commercial & Residential Construction
Curtain wall insulation, ceiling plenums, and interior partition drywalls.
01
HVAC Infrastructure
Air handling units (AHUs), rectangular ducting, and chilled water pipe networks.
02
Industrial Plants
Boiler casing, storage tanks, heat exchangers, and industrial exhaust flues operating up to 250°C.
03
Pre-Engineered Metal Buildings (PEB)
Roof and wall insulation systems for distribution centers, logistics hubs, and agricultural facilities.
04
Quality Control, Packaging & Export Logistics
Supply Chain Advantage: We optimize international shipping logistics to minimize landed costs for our global B2B partners.
Batch Inspection
Every production run undergoes rigorous verification for fiber diameter, binder distribution, tensile strength, thickness recovery, and thermal conductivity via ASTM/EN testing protocols.
Compression Packaging
Rolled products are vacuum-compressed and wrapped in heavy-duty polyethylene film, increasing 40-foot high cube container volume utilization by up to 200% to significantly reduce ocean freight costs per square meter.
Palletization & Labelling
Export orders are stacked on fumigated wooden or plastic pallets with corner edge protectors, complete with custom barcode labeling, specification sheets, and private-label packaging printing upon request.
FAQ
Q: What is the difference between glass wool and rock wool?
A: Glass wool is lighter, easier to handle, and offers exceptional thermal and acoustic insulation. Rock wool generally provides higher temperature resistance and greater compressive strength, making it more suitable for extreme high-temperature industrial applications.
Q: Does glass wool absorb water?
A: The glass fibers themselves are non-absorbent. Hydrophobic treatments provide high water repellency (>= 98%), but proper installation with suitable vapor barriers is recommended where strict moisture control is required.
Q: Can glass wool be used outdoors?
A: Yes, when protected with appropriate weatherproof cladding or factory-applied facings. Direct, prolonged exposure to rain or UV radiation is not recommended.
Q: Can you manufacture customized sizes?
A: Yes. We produce customized thicknesses, densities, widths, lengths, and packaging tailored to specific regional project or market requirements.
Q: Is OEM or private label available?
A: Yes. We provide complete OEM services, including custom branding, export packaging, labeling, specification printing, and tailored pallet marking for international distributors.
As one of the most professional glass wool insulation manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy bulk premium glass wool insulation for sale here from our factory. Welcome to view our website for more information.
Aluminum Foil Fiberglass Blanket, Centrifugal Glass Wool Roll, glass wool rigid board