Jumbo Laminated Glass Very Large Over Size Laminated Glass from the name we can know that is very big size laminated glass. Such large laminated glass also require big glass thickness and itâ??s better to choose SGP as the interlayer. So it is also acoustic glass Saflex DG41. Such large size laminated glass can be seen in the big building curtain wall, glass fence, railing and so on. Advantages: Safety and Security: Jumbo laminated glass provides enhanced safety and security features. It consists of multiple layers of glass bonded together with an interlayer, usually made of polyvinyl butyral (PVB). This construction makes it difficult to break through, reducing the risk of injury from shattered glass and providing protection against forced entry or vandalism.