Sentry Glass

Sentry Glass: A Revolutionary Innovation in Safety and Security Glazing

Sentry Glass is a high-performance interlayer used in laminated glass products, renowned for its exceptional strength, durability, and safety features. Developed by DuPont, Sentry Glass is composed of a robust ionoplast polymer that provides superior protection compared to traditional interlayers like Polyvinyl Butyral (PVB).

Key Features and Benefits:

  1. Enhanced Strength and Durability: Sentry Glass interlayer offers five times the strength and up to 100 times the rigidity of conventional PVB interlayers. This increased robustness ensures that the glass remains intact even under extreme conditions, such as high-impact events and severe weather.

  2. Improved Safety: In the event of breakage, Sentry Glass holds the glass fragments together, reducing the risk of injury from flying shards. This makes it an ideal choice for applications where safety is paramount, such as in automotive windshields, architectural glazing, and protective barriers.

  3. Superior Security: The enhanced strength and rigidity of Sentry Glass make it highly resistant to forced entry and vandalism. It is commonly used in security-sensitive environments, including government buildings, banks, and retail storefronts, to deter potential intruders.

  4. Weather Resistance: Sentry Glass performs exceptionally well in harsh environmental conditions. It is less susceptible to moisture ingress and edge stability issues that can affect traditional PVB-laminated glass, ensuring long-lasting clarity and performance.

  5. Design Versatility: With its superior structural properties, Sentry Glass allows for innovative architectural designs, including large-span glass applications and minimal framing systems. It provides architects and designers with greater freedom to create aesthetically pleasing and functional spaces.


  • Architectural Glazing: Used in facades, skylights, and balustrades for its strength and safety benefits.
  • Automotive Industry: Applied in windshields and other critical automotive glazing components.
  • Security Glazing: Ideal for high-security areas requiring impact-resistant glass.
  • Marine and Aerospace: Utilized in environments where high performance and safety are crucial.


Sentry Glass represents a significant advancement in the field of laminated glass, offering unparalleled strength, safety, and security. Its ability to withstand extreme conditions and resist forced entry makes it an invaluable material for a wide range of applications, ensuring protection and peace of mind for both people and property.