Safety glass lamination films

Laminated safety glass is a sandwich construction where two or more glass plates are joined by an internal transparent polymer layer (interlayer) that, in case of breakage, keeps the glass fragments adhered and prevents injuries. The traditional interlayer is PVB (polyvinyl butyral), dominant in automotive and architectural volumes. PU appears in next-generation interlayers offering specific advantages: better acoustic performance (reduces noise transmission by 3-6 dB), superior performance in armored glass (bullet-resistant glass), capability to integrate features (UV, IR filters, tinting), and better adhesion in extreme-condition applications. Applications: premium automotive windshields (BMW, Mercedes, Audi, Porsche use in premium lines), laminated architectural glass in high-end buildings and seismic-risk zones, armored glass for security applications (armored vehicles, commercial showcases, control cabins), commercial aviation glass. High-value niche market, dominated by few global suppliers (Eastman Chemical, Kuraray, Kingboard, Sekisui).