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Rulon Bearings

Bakelite® Keripol® RFT 1221 Polyester Molding Compound, Low Coefficient of Friction, High Surface Quality, Low Shrinkage, UL Listed
Categories: Polymer; Thermoset; Filled/Reinforced Thermoset; Polyester, TS; Thermoset Polyester Glass Filled BMC
Material Notes: Polyester molding compound, reinforced with cotton fibers, abrasion resistant, UL listed molding compound 1,5 mm / V-0 (ALL).

Applications: Contactor cross bar and housing.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.68 g/cc0.0607 lb/in³ISO 1183
Apparent Bulk Density 0.550 g/cc0.0199 lb/in³ISO 60
Linear Mold Shrinkage 0.0030 cm/cm0.0030 in/inCompression Molding. Post Shrinkage = 0.05%.; ISO 2577
 
Mechanical PropertiesMetricEnglishComments
Flexural Strength 100 MPa14500 psiISO 178
Flexural Modulus 9.00 GPa1310 ksiISO 178
Charpy Impact Unnotched 0.950 J/cm²4.52 ft-lb/in²ISO 179-1 eU
Charpy Impact, Notched 0.250 J/cm²1.19 ft-lb/in²ISO 179-1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+13 ohm-cm1.00e+13 ohm-cm
Surface Resistance 1.00e+12 ohm1.00e+12 ohm
Dielectric Constant 4.5
@Frequency 100 Hz		4.5
@Frequency 100 Hz
Dissipation Factor 0.030
@Frequency 100 Hz		0.030
@Frequency 100 Hz
Arc Resistance 180 - 240 sec
@Thickness 3.00 mm		180 - 240 sec
@Thickness 0.118 in		ALL
High Voltage Arc Resistance to Ignition (HVAR) >= 300 sec
@Thickness 1.50 mm		>= 300 sec
@Thickness 0.0591 in		(ALL)
Comparative Tracking Index 600 V600 V
Hot Wire Ignition, HWI  60 - 120 sec
@Thickness 1.50 mm		60 - 120 sec
@Thickness 0.0591 in		(ALL)
 >= 120 sec
@Thickness 3.00 mm		>= 120 sec
@Thickness 0.118 in		ALL
High Amp Arc Ignition, HAI >= 120 arcs
@Thickness 1.50 mm		>= 120 arcs
@Thickness 0.0591 in		(ALL)
High Voltage Arc-Tracking Rate, HVTR 0.000 - 10.0 mm/min
@Thickness 3.00 mm		0.000 - 0.394 in/min
@Thickness 0.118 in		ALL
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 8.0 MPa 90.0 °C194 °FISO 75-2
UL RTI, Electrical 105 °C
@Thickness 1.50 mm		221 °F
@Thickness 0.0591 in		(ALL)
UL RTI, Mechanical with Impact 130 °C
@Thickness 1.50 mm		266 °F
@Thickness 0.0591 in		(ALL)
UL RTI, Mechanical without Impact 130 °C
@Thickness 1.50 mm		266 °F
@Thickness 0.0591 in		(ALL)
Flammability, UL94 V-0
@Thickness 1.50 mm		V-0
@Thickness 0.0591 in		All colors
 
Descriptive Properties
Water absorption (mg)4024h / 23°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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