General Purpose Acetal Homopolymer

PHYSICAL ASTM#  UNITS  VALUE
Specific Gravity, solid D-792 ---  1.42
Melt Flow Index D-1238 g/10 min,  22
Water Absorption , 24 hours, 73°C D-570 %  0.2
Mold Shrinkage (Flow/Transverse Direction) --- %  1.8-2.2
MECHANICAL      
Tensile Strength, yield, 0.125" D-638 PSI (MPa)  9,900 (68)
Tensile Elongation, break,      0.125" D-638 %  45
Flexural Strength, 0.125" D-790 PSI (MPa)  14,900 (103)
Flexural Modulus, 0.125" D-790 105 PSI (MPa)  4.4 (3,030)
Rockwell Hardness D-785 R-Scale  120
Taber Abrasion D-1044 mg/1000 times  13
Izod Impact Str. Notched, 0.125" D-256 ft.-lb./in. (J/m)  13 (68)
THERMAL      
Heat Deflection
  at 66 PSI
  at 264 PSI
D-648 °F (°C)
 
 342 (172)
 277 (136)
Linear Coefficient of
Expansion
D-696 x10-5 cm/cm/°C  10
FLAME CLASS*
   
Flammability UL94 ---  HB

* This rating is not intended to reflect hazards presented by this or any other material under actual fire condition.

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