Saflex® Structural PVB interlayer

Designed for extra strength in laminated glass

Providing superior structural capacity versus conventional PVB, Saflex® Structural interlayer is a PVB interlayer designed for applications where interlayer rigidity and high glass adhesion requirements for laminated glass are critical.  In properly designed systems, Saflex Structural is capable of containing glass shards at high and low temperatures after impact and under load—even in open edge laminated glass. 

Due to the strength and stiffness of the Saflex Structural interlayer, laminated glass can either sustain a higher uniform load for a given configuration or the glass thickness can be reduced while keeping the same load and area as compared to conventional laminated glass.  Saflex Structural interlayer can be used with virtually all glass types.  The interlayer works well with annealed and heat-strengthened glass to provide reduced optical distortion, but can also be used with fully tempered glass to further contribute to structural capacity.  The use of heat-strengthened glass may be a preferred choice as it delivers reduced optical distortion, thermal stress breakage resistance, reduced potential for spontaneous breakage and the larger break pattern.  Heat-strengthened glass laminated with Saflex Structural interlayer, can provide good residual strength should loads be applied post breakage.  

Saflex Structural interlayer is formulated to provide strong resistance to delamination in open edge exposed applications and is compatible with most visibly reflective, low emissivity, and ceramic frit coatings.  Saflex Structural interlayer also has good sealant compatibility performance.

Saflex Structural interlayer is also compatible with the Vanceva® Colors and Earth Tones interlayer systems, so architects and designers can create safe spaces without sacrificing style or comfort. 


Open edge laminates, stairs, balconies, canopies, sloped and overhead glazing, glass floors, point glazing systems, captured systems, curtail walls for both interior and exterior applications.

Product Benefits:

  • Post breakage safety - Higher load capability sustains safety after breakage.
  • Superior edge stability - Enhances delamination resistance
  • Enhanced unit strength - Facilitates over-sized glass design
  • Enhanced interlayer strength - Enables thinner glass to reduce weight & cost
  • Superwide 3.2 m width - Improves throughput and reduces costs
  • Vanceva® Colors & Earth Tones compatibility - Creates thousands of color opportunities

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