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Hydex® 4101 PBT-P
(PolyButylene Teraphalate Polyester)
Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

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TECHNICAL DESCRIPTION
Hydex® 4101 is manufactured from PolyButylene Terephthalate polyester (PBT-P) resin. It is a semi-crystalline thermoplastic. This material is manufactured from Celanex® resin.

GENERAL PROPERTIES
Hydex® 4101 offers excellent mechanical properties combined with good chemical resistance. PBT-P has good impact resistance and toughness, low coefficient of friction & wear, and does not need lubrication. It also is resistant to chemicals, chlorine, water, and steam.

Hydex® 4101 is available in FDA-approved white and non-FDA black colors.

Hydex® 4101L is an internally-lubricated version designed for use in higher wear resistance, PV range and lower coefficient of friction applications.

Both Hydex® 4101 and 4101L are approved for direct food contact (FDA, USDA, and 3A Dairy compliant).

KEY PROPERTIES
• No center line porosity • Superior chemical resistance • Low coefficient of friction • Good impact strength and ductility • Hard and durable surface • FDA, USDA, 3A Dairy approved grades • Replaces brass, aluminum, steel, UHMW, acetal

TYPICAL APPLICATIONS
• Food piston pumps • Valves and valve bodies • Feeder blocks • Timing screws • Gears • Cams • Bushings and bearings • Wear strips • Fuel pump components • Fuel system connectors and rotors

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TYPICAL PROPERTIES of HYDEX® 4101 PBT-P

ASTM or UL test Property Hydex® 4101 Hydex® 4101L
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.047
1.31
0.049
1.36
D570 Water Absorption, 24 hrs (%) 0.07 0.07
MECHANICAL
D638 Tensile Strength (psi) 9,400 7,200
D638 Tensile Modulus (psi) 425,000 380,000
D638 Tensile Elongation at Break (%) 50 40
D790 Flexural Strength (psi) 11,600 10,600
D790 Flexural Modulus (psi) 420,000 390,000
D695 Compressive Strength (psi) 11,000 11,000
D695 Compressive Modulus (psi) - -
D785 Hardness, Rockwell R120 R110
D256 IZOD Notched Impact (ft-lb/in) 0.7 0.7
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
4.5 5.0
D648 Heat Deflection Temp (°F / °C)
at 264 psi

200 / 93

195 / 89
D3418 Melting Temperature (°F / °C) 420 / 215 420 / 215
- Max Operating Temp (°F / °C) 221 / 105 221 / 105
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

-
-

-
-
UL94 Flammability Rating HB HB
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, 1/8" thick 410 -
D150 Dielectric Constant at 60 Hz 3.3 -
D150 Dissipation Factor at 60 Hz 0.002 -
D257 Volume Resistivity (ohm-cm)at 50% RH 4.5 x 1016 -

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
HYDEX is a registered trademark of A.L. Hyde Company.
CELANEX is a registered trademark of Celanese AG Ticona.
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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

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