What is the Main Function of SGP Film in Laminated Glass?

In the world of architectural and structural glass, safety and performance are non-negotiable. Enter SGP film—an interlayer that has quietly redefined the standards of laminated glass. Short for SentryGlas® Plus, SGP is a high-performance ionoplast interlayer designed to elevate the structural integrity, clarity, and resilience of laminated glass systems.

Reinforcing Safety Beyond Expectations
At its core, the primary function of SGP film is to enhance the mechanical strength and post-breakage performance of laminated glass. Compared to traditional PVB (polyvinyl butyral) interlayers, SGP boasts five times the tear strength and up to 100 times the rigidity. When the glass breaks, SGP holds the fragments together more firmly, dramatically reducing the risk of injury from flying shards. This elevated adhesion prevents delamination and ensures the glass remains intact under intense stress—ideal for high-impact environments.

Structural Brilliance for Bold Designs
SGP isn’t just about safety. Its rigidity allows laminated glass to carry load independently, eliminating the need for additional support systems in some applications. This opens the door for architects to design more daring, minimalist façades, canopies, and balustrades—structures where the glass is not just a barrier but a critical load-bearing element.

In seismic zones and hurricane-prone areas, SGP-laminated glass maintains integrity under dynamic pressure, making it the interlayer of choice for critical infrastructure and high-rise buildings.

Clarity that Endures
Traditional interlayers can yellow over time or absorb moisture, compromising transparency. SGP, on the other hand, resists both UV degradation and moisture intrusion. The result? Crystal-clear visibility that persists—even in the harshest climates. For glass walls, skylights, or museums, where optical purity is essential, SGP delivers unmatched clarity and color neutrality.

A Shield Against the Elements
SGP acts as a formidable barrier—not only against physical force but also environmental wear. From temperature extremes to prolonged exposure to ultraviolet radiation, it defies the usual limits of laminated glass performance. This durability reduces long-term maintenance and replacement costs, translating into a lower total cost of ownership for building owners.

SGP film is more than an interlayer—it's a transformative element that redefines what laminated glass can achieve. By combining exceptional strength, clarity, and durability, SGP empowers architects, engineers, and developers to push the boundaries of safety and design. Whether for a panoramic façade, a hurricane-resistant storefront, or an awe-inspiring glass staircase, SGP ensures that vision and performance walk hand in hand.