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Styrene Acrylonitrile sheets (SAN Sheets)

Styrene acrylonitrile is a copolymer plastic consisting of styrene and acrylonitrile. It is commonly known as SAN and is widely used in place of polystyrene owing to its greater thermal resistance. The Acrylonitrile content not only improves mechanical properties and chemical resistance, but also adds a blue tint to the normally transparent plastic.

SAN sheets combines the formability, dimensional stability, density and bright clear transparency of polystyrene with heat resistance, strength & stiffness of acrylonitrile. These extruded copolymer sheets are highly resistant to water absorption and chemical products.

Ranges of SAN Sheets

  • Solid SAN sheet
  • SAN Antiglare sheet (AG Sheet)
  • SAN Prismatic sheet

Applications of SAN Sheet

  • Industrial (door) glazing because of its Light weight property saves energy where electric motors are used to control door opening
  • Food storage containers, kitchenware, packaging material, and plastic optical fibers
  • Covers for office equipment
  • Screen printing
  • Advertising signs
  • Fittings for shops and exhibitions
  • Displays
  • Flat or curved shower screens
  • Room dividers/partitions

Features of SAN sheets

  • Light weight: The weight of a SAN sheet is less when compared to Polycarbonate & Acrylic sheets
  • Transparency: The light transmission of SAN sheet is 86 to 90%(clear)
  • High resistance ot moisture and chemical absorption
  • Resistant to most fats, dilute acid solutions, oils and common bleaching agents
  • High degree of formability both vacuum and thermal
  • High degree of dimensional stability
  • Food safe

Description Thickness (mm) Width(mm) X Length(mm)
SAN 2 - 12.0 2100(max)
SAN Anti Glare Sheet (AG Sheet) 2 - 12.0 2100(max)
SAN Prismatic sheets 2.8 - 3.00 1220 (max) for 2.8mm; 3mm - 2100 (max)

Property Test Method (ASTM) Unit Index Value
Density ASTMD792 g/cm 1.09
Water Absorption, Equilibrium, 24 Hrs ASTM D570 % 0.2
Refractive Index ASTM D542   1.57
Light Transmission ASTM D1003 % 92
Rockwell Hardness ASTM D785   84
lzod Impact Strength (Notched) ASTM D256 kg -cm/cm 1.84
Tensile Strength ASTM D638 kg/cm 2 612
Tensile Modulus ASTM D638 Mpa 3900
Flexural Strength ASTM D790 kg/cm 2 1070
Flexural Modulus ASTM D790 Mpa 3750
Elongtional break ASTM D638 % 1.8
Coefficient of Thermal expansion ASTM D696 cm/cm – oC 6.Ox10 -5
Heat Deflection temp,@264psi ASTM D648 oC 101
Vicat Softening Point ASTM D1525 oC 112
Mould Shrinkage ASTM D955 % 0.4 -0.6

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