Introduction
The global market for Polyvinyl Butyral (PVB) interlayers—used in laminated glass assemblies—is experiencing steady growth. According to Stratview Research, the Polyvinyl Butyral (PVB) interlayer market was estimated at about USD 3.74 billion in 2021, and is projected to reach approximately USD 6.31 billion by 2028, growing at a CAGR of around 7.67%.

Applications
PVB interlayers are primarily used in laminated safety glass for the automotive and building-&-construction sectors. In the automotive space, they form the core of windshields, side and roof glass, providing shatter-resistance and improved acoustic performance. In architecture, they are used in facades, skylights and interior glazing to meet safety, sound-control and thermal-insulation demands. They also find growing use in the photovoltaic (PV) industry as encapsulants for solar modules, though this remains a smaller share.

Key Drivers
The growth of the PVB interlayers market is driven by several key factors: increasing global vehicle production and stricter automotive glazing safety regulations; rising urbanisation and construction activities demanding high-performance laminated glass; and growing emphasis on energy-efficient, acoustic-insulating building materials. Moreover, the Asia-Pacific region is emerging as a major locus of growth thanks to expanding vehicle and construction markets.

Future Opportunities
Going forward, opportunities lie in specialty PVB interlayers with added functionalities—such as acoustic damping, solar control and bird-strike resistance—and in emerging geographic markets. The photovoltaic application is a promising sector, as module manufacturers seek interlayers that provide durability along with performance. Also, innovations in recycling and bio-based PVB interlayers may open pathways for sustainable growth.

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Conclusion
Overall, the PVB interlayers market is on a solid upward trajectory, benefiting from expanding automotive and construction demand, regulatory impetus and material innovation. Stakeholders who focus on advanced interlayer technologies and target fast-growing regions will be well-positioned to capitalise on this evolving market.