San Diego Plastics
2220 McKinley Avenue
National City  CA  91950
800/925-4855   619/477-4855   FAX 619/477-4874

HYDEX 4101 & 4101L

PBT-P
(PolyButylene Teraphalate Polyester)

HYDEX 4101
Specifications


HYDEX 4101 & 4101L (lubricated) is a very stable chemical compound that can withstand high impact without deterioration. It is approved for direct contact with food by the FDA and is ideal for machined parts in food processing equipment. HYDEX 4101 has excellent resistance to typical cleaning chemicals such as chlorine and caustic solutions and has a very low moisture absorption rate, as much as 15 times less than nylon.

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

HYDEX 4101 & 4101L (lubricated) exhibits a broad range of outstanding properties for a variety of applications, especially in the food processing industry. It is ideal for applications such as cams, bearings, gears, food pistons, wear strips, scraper blades, valve bodies and conveyor components.

 


 


TYPICAL PROPERTIES of HYDEX 4101 PBT-P

 
ASTM or UL test Property Hydex 4101 Hydex 4101L
PHYSICAL
D792 Density (lb/in)
(g/cm)
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/ft-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 73F (23C) unless otherwise noted.

HYDEX is a registered trademark of ENSINGER/Hyde Company.
CELANEX is a registered trademark of Celanese AG Ticona.
 

 


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