Saflex Solar PVB interlayers are high-visible light transmittance, infrared (IR) radiation-absorbing interlayers designed to enhance solar heat gain performance in laminated glass compared to monolithic clear glass and laminates made with conventional polyvinyl butyral (PVB) interlayer. They have the capability to meet or exceed many regulations for laminated safety glazing when properly selected, laminated, and installed.
Maximum Daylight, Minimal Solar Heat
The ideal solar product eliminates UV and NIR energy while allowing as much visible light transmittance as possible. As shown in the below chart, Saflex Solar has the transmittance of a highly effective high-visible light transmittance solar product. Plus, Saflex Solar is specifically formulated to provide exceptional durability when exposed to natural weathering.
Spectral Transmittance Data
Saflex Solar is the PVB formulation of choice for applications where strengthened glass is specified to provide additional load or stress resistance (e.g., point-fixed system). Two options are available in the Saflex Solar range: Saflex Solar SG is our highest- performing Solar PVB interlayer, Saflex Solar SH has a more color-neutral appearance and may be laminated with annealed glass in some applications. In specific configurations, Saflex can be advantageously combined with low-e coatings or robust solar control coatings.
Product Benefits
0.65 Solar Heat Gain Coefficient (SHGC)
Visible Light Transmittance > 70%
Suited for curved glass applications
Reduces angular color concerns
Reduces outside noise
Compatible with: Vanceva™ Color System, Saflex Structural
Applications
Curved glass applications
Low-reflection glazing
Premium retail showrooms
External glazed façades (especially in hot regions)
