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Rulon Bearings

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Eastman Eastar BR003 Natural PCTA Copolyester
Categories: Polymer; Thermoplastic; Polyester, TP; PCTA Polyester Alloy; Polycyclohexylenedimethylene Terephthalate (PCT)

Material Notes: Eastar™ BR003 Copolyester contains a mold release additive. It has excellent appearance and is nearly water-clear. Its most outstanding features are its chemical resistance and processing capabilities. Exposure to aromatic oils often causes crazing or actual fracture of many polymer resins, but BR003 maintains its physical properties when exposed to these oils, and its appearance is virtually unchanged. BR003 is specifically formulated to provide the optimal combination of chemical resistance, bristle retention, strength, stiffness, processability, clarity, colorability, and feel for toothbrushes. Under existing United States Food and Drug Administration(FDA) regulations, Eastar™ BR003 copolyester may lawfully be used to make food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240. Migration tests on BR003 samples meet the compliance requirements of 21 CFR 177.1240(e)(1),(2) and (3).

Application/Uses:

  • Oral hygiene
  • Plastics for hygiene feminine products
  • Toothbrushes

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Physical PropertiesOriginal ValueComments
Density 1.20 g/ccASTM D792
Linear Mold Shrinkage, Flow 0.0020 - 0.0060 cm/cm
@Thickness 3.20 mm
ASTM D955
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 103ASTM D785
Tensile Strength, Ultimate 46.0 MPaISO 527
 51.0 MPaASTM D638
Tensile Strength, Yield 47.0 MPaASTM D638 and ISO 527
Elongation at Break 200 %ISO 527
 320 %ASTM D638
Elongation at Yield 4.0 %ISO 527
 5.0 %ASTM D638
Tensile Modulus 1.80 GPaISO 527
Flexural Yield Strength 65.0 MPaISO 178
 69.0 MPaASTM D790
Flexural Modulus 1.85 GPaISO 178
 2.00 GPaASTM D790
Izod Impact, Notched 0.800 J/cmASTM D256
 0.400 J/cm
@Temperature -40.0 °C
ASTM D256
Izod Impact, Unnotched NB
@Temperature 23.0 °C
ASTM D4812
 NB
@Temperature -40.0 °C
ASTM D4812
Izod Impact, Notched (ISO) 4.80 kJ/m²
@Temperature -40.0 °C
ISO 180
 7.80 kJ/m²
@Temperature 23.0 °C
ISO 180
Puncture Energy 42.0 J
@Temperature 23.0 °C
Energy @ Max. Load; ASTM D 3763
 48.0 J
@Temperature -40.0 °C
Energy @ Max. Load; ASTM D 3763
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 0.46 MPa (66 psi) 73.0 °CASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 65.0 °CASTM D648
 
Optical PropertiesOriginal ValueComments
Haze 0.30 %ASTM D1003
Transmission, Visible 89 %Regular transmittance per ASTM D 1003
 91 %Total Transmittance; ASTM D 1003
 
Processing PropertiesOriginal ValueComments
Melt Temperature 230 - 280 °C
Mold Temperature 15.0 - 30.0 °C
Drying Temperature 70.0 °C
Dry Time 3.00 hour
 
Compliance PropertiesOriginal ValueComments
FDA YesSee notes for details.

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 go back to viewing the property data in MatWeb's normal format.

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