Laminated Glass: A Complete Guide to PVB & SGP Safety Glass
1. What is Laminated Glass?
Laminated glass is a type of safety glass made by bonding two or more glass layers with an interlayer (such as PVB, SGP, or EVA) under heat and pressure. Even when broken, the glass fragments remain adhered to the interlayer, preventing injuries—making it ideal for impact-resistant, soundproof, and UV-protective applications.
2. Structure of Laminated Glass
Laminated glass consists of:
Outer Glass Layers: Typically tempered, float, or fire-rated glass.
Interlayer: PVB (Polyvinyl Butyral), SGP (SentryGlas® Plus), or EVA (Ethylene-Vinyl Acetate), which determines strength and performance.
Comparison of Common Interlayers
Interlayer | Key Features | Best For |
PVB | High adhesion, sound insulation, UV blocking | Windows, windshields, facades |
SGP | 5x stronger than PVB, blast-resistant | Banks, airports, bulletproof glass |
EVA | Flexible, decorative options | Solar panels, artistic glass |
3. Key Benefits of Laminated Glass
✔ Safety – Shatterproof, reduces injury risks.
✔ Security – Resists break-ins (SGP for bulletproof glass).
✔ Sound Insulation – Reduces noise by 30-40% (PVB ideal for urban buildings).
✔ UV Protection – Blocks 99% of harmful UV rays.
✔ Energy Efficiency – Lowers cooling costs (thermal insulation).
✔ Customizable – Available in colors, tints, and curved designs.
4. Applications of PVB/SGP Laminated Glass
🏢 Architecture – Skylights, curtain walls, balconies.
🚗 Automotive – Windshields, sunroofs (ECE R43 certified).
🏦 Security – Bank teller windows, jewelry displays (SGP for high protection).
☀ Solar & Decorative – PV panels, interior design (EVA laminated glass).
5. Laminated Glass vs. Other Safety Glass
Glass Type | Safety | Soundproofing | UV Blocking | Best Used For |
Laminated (PVB/SGP) | ★★★★★ | ★★★★☆ | ★★★★★ | High-security & acoustic needs |
Tempered Glass | ★★★★☆ | ★★☆☆☆ | ★★☆☆☆ | Doors, shower enclosures |
Insulated Glass | ★★☆☆☆ | ★★★★★ | ★★★☆☆ | Energy-efficient windows |
6. Why Choose Hitech for PVB/SGP Laminated Glass?
✅ Factory-direct pricing – No middlemen, lower costs.
✅ Fast global delivery – Reliable logistics partners.
✅ Custom solutions – Thickness, colors, sizes, and interlayers.
✅ Certified quality – CE, ANSI, ISO standards compliance.
7. Get a Free Quote Today!
Looking for a reliable PVB/SGP laminated glass supplier? Hitech provides high-quality, custom laminated glass at competitive prices with fast shipping worldwide.
📞 Contact us now for samples and bulk orders!