What Is Ultra thick laminated glass?
Ultra-thick laminated glass is a type of safety glass made by bonding multiple layers of glass and intermediate layer materials (such as PVB, EVA or SGP) through high-temperature and high-pressure processes. It features high strength, impact resistance, sound insulation, heat insulation, UV protection and explosion prevention.
Structure and CompositionGlass layer: Usually, two or more layers of tempered or semi-tempered glass are used, with a single layer thickness of up to 10-25mm and a total thickness exceeding 50mm.
Middle layer: Common materials include:
PVB (Polyvinyl alcohol butyraldehyde) : The traditional choice, with good viscoelasticity and strong resistance to penetration.
SGP (Ionic Intermediate Layer) : Higher strength and rigidity, suitable for explosion-proof scenarios.
EVA (ethylene-vinyl Acetate) : Commonly used in photovoltaic modules or scenarios where higher light transmittance is required.
Core featuresSafety: After breaking, the fragments adhere to the middle layer to prevent splashing.
Impact resistance: It can withstand hurricanes, explosion impacts or violent damage (such as UL 752 bulletproof standard).
Sound insulation performance: The middle layer can effectively dampen sound waves, and the STC (sound insulation grade) can reach over 50dB.
Ultraviolet blocking: Blocks over 99% of UV radiation and protects indoor items from fading.
Thermal stability: The middle layer reduces heat conduction and is suitable for building curtain walls or extremely cold environments.
Application scenarios
Construction field
High-rise building curtain walls, skylights, typhoon-resistant glass (such as in coastal areas).
Security protection
Bank counters, jewelry store Windows, prison visitor areas.
Transportation facilities
High-speed railway station, airport terminal building, explosion-proof subway Windows.
Special requirements
Museums (UV protection), data centers (electromagnetic shielding interlayers).
Key points of processing technologyLamination technology: Precise control of temperature (120-150℃) and pressure (1.2-1.5MPa) is required to prevent air bubbles or delamination.
Edge treatment: Grinding or polishing the edge to prevent stress concentration and enhance edge strength.
Customization: It can be combined with Low-E coating, dimming film or printed patterns.
Precautions
Weight issue
The weight per square meter can reach over 100 kilograms, and the supporting structure needs to be reinforced.
Cost factor
The price is 3 to 5 times that of ordinary glass, but its lifespan is over 30 years.
Installation requirements
A professional team is required to use structural adhesives (such as silicone sealant) and heavy-duty frames.
Package
1. Glass packed in seaworthy wooden crates or plywood cases.
2. Iron belt for consolidation.
3. Under wooden crate there will be legs for forklift easy loading and unloading.
FAQ
Q: How can we get detailed price?
A: Please office us detailed information of the production,specific packaging requirements and purchasing quantity.
Q: What's the MOQ?
A: Generally, there is no MOQ for processing glass, if want to receive the best price, the more quantity, the better price.
Q: Why choose Zhonggang?
A: Zhonggang Industry has more than 10 years of export and we have a professional technique team can supply online technology support.
Q: What service could you supply?
A: In addition to providing high quality standardized products, we can also provide special-sized products and customized services. More important, you could get the professional suggestion from our expert.
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