Stax Flex Low Iron Textured Glass. Named after the way each glass blade is stacked, then fused together. Stax Series offers another ingenious way to create exciting feature walls over very large surfaces. Two patterns are currently available: Beamz (linear design), Flex (twisting fluidity) and Weavz. Layers of glass are fused together to create solid panels. The back surface is lightly textured and flat. However, the front surface face of each panel will be staggered, with varying heights and shapes. As Stax Glass is too thick to temper, we cannot produce as safety tempered glass. However, we can laminate our Stax Glass to flat panels of clear, frosted, colored or mirrored back panels. Once laminated, the glass can be classified as safety glass.