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Durable and cleanable clear sheet

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Design Options

Clear with a slight blue tint
Both sides
2,500 lb (1,137 kg)

Boltaron® 4355 offers superior chemical resistance, clarity and durability compared to other materials. Meet long-term hygiene and safety standards without having to worry about the negative effects of cleaning products, crazing or bending.


  • Provides superior durability in use
  • Extremely cleanable
  • Impact resistant
  • Chemical resistant
  • Easy, consistent fabrication
  • Won’t craze when bent
  • Not notch sensitive


  • 2D or 3D FAR 25.853(a) compliant privacy passenger safety dividers
  • Check-in counter barriers

Performance Details

FAR Ratings

  • FAR 25.853(a)(i) (Flammability) (Vertical burn, 60 sec) Pass
  • FAR 25.853(a)(ii) (Flammability) (Vertical burn, 12 sec) Pass


  • Name Test Method Imperial Metric
  • Specific Gravity ASTM D792 1.36
  • Flexural Modulus ASTM D790 483,000 psi 3,330 MPa
  • Izod Impact Notched ASTM D256 0.65 ft-lb/in @ 73 °F 34 J/m @ 23 °C
  • Hardness Rockwell ASTM D785 111.5
  • Heat Deflection Annealed ASTM D648 152 F° 66.7C°
  • Light Transmission ASTM D1003 79%
  • Haze ASTM D1003 4.8 @0.118 in
  • Tensile Strength @ Yield ASTM D638 8,600 psi 59 MPa
  • Tensile Strength @ Break ASTM D638 6,200 psi 42 MPa
  • Elongation @ Yield ASTM D638 3.36%
  • Elongation @ Break ASTM D638 84.3%
  • Flexural Strength @ Yield ASTM D790 14,800 psi 102 MPa
  • Tensile Modulus ASTM D638 448,000 psi 3,080 MPa

* Independent lab tests. All tests at 73 °F (23 °C) in dry conditions unless otherwise noted.

Sheet Sizes

  • Name Imperial Metric
  • Lengths to 48 in 1,220 mm
  • Widths to 96 in 2,440 mm
  • Gauges from 0.040 to 0.472 in from 1.0 to 12.0 mm
  • Custom Sizes Blank sizes, gauges on request

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