Hollow glass is a composite glass product formed by combining two or more pieces of glass through a high-strength sealing system and precision spacing structure, creating a permanent dry gas cavity. Its core feature is to achieve energy-saving performance through gas insulation layer, which is a key functional material for modern building envelope structures.

lSubstrate types: float glass (3-12mm), tempered glass, Low-E coated glass, laminated glass, etc

lSpacer materials: aluminum alloy (conventional), stainless steel (corrosion-resistant), composite material (TPSS warm edge technology)

lKey technology: Built in 3A molecular sieve desiccant

lSealing system: First seal: butyl rubber (air tightness guarantee) Second seal: polysulfide rubber/silicone rubber (structural strength guarantee)

Core Features：

✅Thermal insulation: The middle gas layer effectively reduces heat conduction, saving 30%~50% energy compared to single-layer glass (K value ≤ 1.8 W/(㎡· K))

✅Sound insulation and noise reduction: can reduce noise by 25-35dB, especially good at blocking mid to low frequency noise (such as traffic noise)

✅Anti condensation: The hollow layer remains dry, making it less prone to fogging when there is a large temperature difference between indoors and outdoors

✅Lightweight: Under the same thickness, the weight is 20%~30% lighter than laminated glass

✅Processability: Supports combination use with Low-E coating, tempered glass, etc

Product Specifications：

Conventional maximum size: 3000 × 5000mm  Product thickness range: 16-75mm

Existing production lines: Baichao Zhongkong Line, Hanjiang Zhongkong Line, Tomorrow's Star TPSS Zhongkong Line, Baichao 4SG Zhongkong Line

Quality standard： Hollow glass GB/T11944-2012/Coated glass GB/T18915-2013

/Tempered Glass GB15763.2-2005 and Internal Control Quality Standards