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Hydex™ 4101 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.

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At a Glance

Generic Name
Polybutylene Terephthalate

Available In
Sheet, Rod

Certifications
FDA, USDA, 3A Dairy Approved

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

TypeSizeLengthColor
Sheet .25″ to 2″ 24” x 24” CTS, 24” x 48” CTS White and Black
Rod 3/16” to 4 ¾” (10’ Length 5” & greater (5’ Length) Varies by diameter White or Black

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in³ D792 1.31
Water Absorption, 24 hrs % D570 0.07
Mechanical PropertiesUnitsASTMResults
Tensile Strength @ yield psi D638 9400
Tensile Elongation @Break % D638 50
Flexural Strength psi D790 11,600
Flexural Modulus psi 420000
IZOD Impact Strength Notched ft-lb/in D256 0.7
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion (x 10^-5 in./in./°F) 4.5
Heat Deflection Temp at 264 psi °F D648 200
Melting Temperature °F 420
Max Operating Temp. °F 221

Applications

  • Bearings
  • Timing screws
  • Gears
  • Feeder blacks
  • Fuel pump components
  • Food pistons
  • Wear strips
  • Scraper blades
  • Cams
  • Conveyer components
  • Valve bodies

Advantages

  • Good chemical resistance
  • High impact strength
  • Hard and durable surface
  • FDA, USDA, & 3A Dairy Approved
  • Low coefficient of friction
  • Low moisture absorption
  • Excellent machining qualities
  • No centerline porosity
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