KRYSTALFLEX® PE429

Aliphatic polyether-based Thermoplastic Polyurethane

Product Description:
KRYSTALFLEX® PE429 is a polyether-based Themoplastic Polyurethane (TPU) film for glass lamination applications. Key features are excellent hydrolysis and microbial resistance, UV resistance, low hardness and modulus, low warpage, excellent adhesion to acrylic, good low temperature performance, excellent laminated transparency and contains an adhesion promoter.
MAIN APPLICATIONS:
Prison containment glazing, ballistic / blast / intrusion protection, vehicle armoring, retail kiosks, hurricane / vandal glazing and liquid crystal laminates.
Properties Key NORM Value Unit
Hardness (after 3 sec.) M ASTM D 2240 61 Shore A
Hardness (after 3 sec.) M ASTM D 2240 18 Shore D
Density M ASTM D 792 1.05 g/cm³
Tensile strength E ASTM D 412 3970 psi
Elongation @ break E ASTM D 412 590 %
Tensile stress @ 50% elongation E ASTM D 412 280 psi
Tensile stress @ 100% elongation E ASTM D 412 390 psi
Tensile stress @ 300% elongation E ASTM D 412 880 psi
Tear strength E ASTM D 624 270 pli
Flexural modulus @ 23°C M ASTM D 790 600 psi
Flexural modulus @ -29°C M ASTM D 790 2480 psi
Softening range low E Huntsman TMA 83 °C
Softening range high E Huntsman TMA 130 °C
Glass transition temperature (DMA) E ASTM D 5026 -62 °C
Vicat softening point VST/A120 M ASTM D 1525 48 °C
  • M = Injection molded parts to meet DIN & ASTM requirements. Parts at room temperature aged prior to testing.

  • E = Extruded film cut to ASTM requirements. Parts at room temperature aged prior to testing.

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