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XPS Polystyrene Crystal
Legend

A = amorphous Cr = crystalline
C = clear E = excellent
G = good P = poor
O = opaque T = translucent
R = Rockwell S = Shore 

STRUCTURE: A

SPECIFIC DENSITY: 1.05

WATER ABSORPTION RATE (%): 0.06

ELONGATION (%): 47

TENSILE STRENGTH (psi): 5900

COMPRESSION STRENGTH (psi): 14500

FLEXURAL STRENGTH (psi): 6100

FLEXURAL MODULUS (psi): 475000

IMPACT (IZOD ft. lbs/in): 0.8

HARDNESS: R80

FABRICATION
  - BONDING: E
  - ULTRASONIC WELDING: E
  - MACHINING: G

DEFLECTION TEMPERATURE (deg. F)
  - @ 66 psi: 211
  - @ 264 psi: 200

UTILIZATION TEMPERATURE (deg. F)
  - min: -92
  - max: -150

MELTING POINT (deg. F): 212

COEFFICIENT OF EXPANSION: 0.00004

ARC RESISTANCE: 70

DIELECTRIC STRENGTH (kV/mm): 24

TRANSPARENCY: C

UV RESISTANCE: P

CHEMICAL RESISTANCE
  - ACIDS: G
  - ALKALIS: E
  - SOLVENTS: P
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