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Specialty Compounds RTP Company

RTP Company RTP 840 Acetal (POM), Mineral
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Mineral Filled

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.73 g/cc1.73 g/ccASTM D 792
Additive Loading 40 %40 %Primary Additive
Linear Mold Shrinkage 0.010 - 0.020 cm/cm
@Thickness 3.20 mm
0.010 - 0.020 in/in
@Thickness 0.126 in
ASTM D 955
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 34.5 MPa5000 psiASTM D 638
Elongation at Break 3.0 - 5.0 %3.0 - 5.0 %ASTM D 638
Tensile Modulus 4.48 GPa650 ksiASTM D 638
Flexural Strength 68.9 MPa10000 psiASTM D 790
Flexural Modulus 4.14 GPa600 ksiASTM D 790
Izod Impact, Notched 0.400 J/cm
@Thickness 3.20 mm
0.750 ft-lb/in
@Thickness 0.126 in
ASTM D 256
Izod Impact, Unnotched 2.67 J/cm
@Thickness 3.20 mm
5.00 ft-lb/in
@Thickness 0.126 in
ASTM D 4812
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+14 ohm-cm>= 1.00e+14 ohm-cmASTM D 257
Surface Resistivity per Square >= 1.00e+14 ohm>= 1.00e+14 ohmASTM D 257; ESD STM11.11
 
Thermal PropertiesMetricEnglishComments
Flammability, UL94 HB
@Thickness 1.50 mm
HB
@Thickness 0.0591 in
UL 94
 
Processing PropertiesMetricEnglishComments
Melt Temperature 182 - 218 °C360 - 425 °F
Mold Temperature 79.4 - 107 °C175 - 225 °F
Drying Temperature 121 °C
@Time 7200 sec
250 °F
@Time 2.00 hour
Moisture Content 0.15 %0.15 %
Dew Point -31.7 °C-25.0 °F
Injection Pressure 68.9 - 103 MPa10000 - 15000 psi

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PQZWA7852 / 92327

Specialty Compounds RTP Company

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