SGP (SentryGlas® Plus) is a type of interlayer film that is commonly used in laminated glass applications. It offers several advantages over other interlayer materials, such as polyvinyl butyral (PVB). Here are some reasons why SGP is used for laminated glass:
Enhanced strength and safety: SGP is a highly durable and rigid material, providing superior strength and stiffness compared to PVB. When laminated between two or more layers of glass, SGP significantly increases the structural integrity of the glass assembly, making it resistant to breakage, impacts, and forced entry. In case of breakage, SGP holds the glass fragments together, reducing the risk of injury from sharp shards.
Improved post-breakage performance: In the event of glass breakage, SGP retains its integrity and structural properties more effectively than PVB. This characteristic is particularly important in applications where glass needs to remain intact and secure, such as in overhead glazing or balustrades.
Optical clarity: SGP has excellent optical clarity, allowing for a clear and distortion-free view through the laminated glass. This makes it suitable for applications where visual aesthetics are essential, such as architectural facades, glass floors, or display cases.
UV resistance: SGP offers superior resistance to ultraviolet (UV) radiation compared to PVB. It can effectively block a significant portion of harmful UV rays, helping to protect occupants, interior furnishings, and artwork from fading or degradation caused by prolonged exposure to sunlight.
Design versatility: SGP can be used with various types of glass, including tempered, heat-strengthened, and annealed glass. It enables the creation of laminated glass structures with different thicknesses, shapes, and sizes, offering designers and architects greater flexibility in their projects.
Long-term durability: SGP has excellent resistance to moisture, chemicals, and weathering. It maintains its performance and integrity over time, ensuring the long-term durability of laminated glass assemblies even in harsh environments.
Overall, SGP is chosen for laminated glass applications due to its exceptional strength, safety, optical quality, and durability. It offers enhanced performance and design possibilities, making it a preferred choice in various architectural, automotive, and high-security applications.
