Glass is no longer just a transparent barrier, it’s a versatile material that can provide safety, privacy, energy efficiency, and even aesthetic appeal. At the heart of modern high-performance glass solutions are glass interlayers, which determine the strength, functionality, and safety of laminated panels. For architects, builders, and homeowners, understanding the different types of interlayers and their applications is key to selecting the right product for any project.
A glass interlayer is a thin layer of material placed between two or more sheets of glass to bond them together. This layer not only holds the glass together if it breaks but also provides additional benefits such as strength, impact resistance, UV protection, and acoustic insulation. The type of interlayer used influences the overall performance of the laminated glass panel.
PVB is the most widely used interlayer for laminated glass. It is highly effective at holding broken glass fragments in place, providing safety in areas such as windows, doors, and partitions. PVB interlayers are also known for their clarity and ability to reduce noise transmission, making them ideal for residential and commercial projects where impact resistance and aesthetics are both important.
SG interlayers are high-performance structural interlayers that provide exceptional strength, durability, and load-bearing capability. Unlike standard PVB, SG interlayers allow laminated glass to be used in structural applications such as balustrades, overhead glazing, floors, and pool panels. Even if the glass cracks, the panel maintains its integrity, providing a high level of safety and peace of mind.
Acoustic interlayers are designed to reduce sound transmission between spaces. Often made from specially engineered PVB or multi-layer combinations, these interlayers are ideal for buildings in noisy environments or projects requiring privacy and noise control.
At Polytron, we manufacture all our laminated glass panels in-house, giving us full control over the interlayer selection and lamination process. Whether your project requires PVB for everyday safety or SG for structural applications, we provide tailored solutions that meet both design and performance needs.
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