Paras Traders



PTFE Balls


PTFE Balls

We are prominent among the PTFE balls suppliers in India. Our polytetrafluoroethylene balls are very famous in the market due to its extraordinary quality. We are seen currently in the market as potential PTFE plastic balls manufacturer. Discovered in 1938 by Dr. Roy J. Plunkett of the DuPont Company, Teflon® is a fluorocarbon-based polymer. Poly Tetra Fluoro Ethylene is commonly abbreviated PTFE. The fluoroplastic family offers plastics with high chemical resistance, low and high temperature capability, resistance to weathering, low friction, electrical and thermal insulation, and “slipperiness”.

GENERAL PROPERTIES
Mechanical properties of Teflon® are low compared to other plastics, but its properties remain at a useful level over a wide temperature range of -100°F to +400°F (-73°C to 204°C). It has excellent thermal and electrical insulation properties and a low coefficient of friction. PTFE is very dense and cannot be melt processed, it must be compressed and sintered to form useful shapes.


TYPICAL PROPERTIES OF TEFLON® PTFE

  PHYSICAL  
ASTM or UL test Property PTFE (unfilled)
D792 Density (lb/in3), (g/cm3)  0.0783, 2.163
D570 Water Absorption, 24 hrs (%) < 0.01
  MECHANICAL  
D638 Tensile Strength (psi) 3,900
D638 Tensile Modulus (psi) 80,000
D638 Tensile Elongation at Break (%) 300
D790 Flexural Strength (psi) No Break
D790 Flexural Modulus (psi) 72,000
D695 Compressive Strength (psi) 3,500
D695 Compressive Modulus (psi) 70,000
D785 Hardness, Shore D D50
D256 IZOD Notched Impact (ft-lb/in) 3.5
  THERMAL  
D696 Coefficient of Linear Thermal Expansion (x 10-5 in./in./oF) 7.5
D648 Heat Deflection Temp (oF/oC) at 264 psi 132/55
D3418 Melting Temp (oF/oC) 635/335
- Max Operating Temp (oF/oC) 500/260
C177 Thermal Conductivity (BTU-in/ft2-hr-oF), (x 10-4 cal/cm-sec-oC) 1.703, 5.863
UL94 Flammability Rating V-O
  ELECTRICAL  
D149 Dielectric Strength (V/mil) short time, 1/8 ?? thick 285
D150 Dielectric Constant at 1 MHz 2.1
D150 Dissipation Factor at 1 M Hz < 0.0002
D257 Volume Resistivity (ohm-cm) at 50% RH > 1018