Shashi Fluoroplastiks
Shashi Fluoroplastiks
Malad West, Mumbai, Maharashtra
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Polymer Science

TFE Monomer is generally manufactured by synthesis of Calcium Fluoride (Fluorospar), Sulphuric Acid & Chloroform. The polymerisation of TFE is carried out in carefully controlled conditions to form PTFE.

Due to presence of stable & strong C-F bonds, PTFE molecule possesses outstanding chemical inertness, high heat resistance & remarkable electrical insulation characteristics; in addition to excellent frictional properties.

PTFE Poly Tetra Fluoro Ethylene

PTFE is high performance engineering specialty polymer invented by Dr. Roy J. Plunkett at Du Pont's Jackson Laboratory, New Jersey, US, on 6th April 1938. As the polymer was found to have exceptional properties with regards to chemical inertness, heat resistance & frictional properties; developmental manufacturing began in 1943 with joint efforts of Kinetic Engineering Inc, USA & E.I. Du Pont de Nemours & Co. Inc., USA. The commercial production went operational by E.I. Du Pont de Nemours & Co. Inc., USA in 1948. The worldwide consumption of PTFE is around 45,000 Tonnes in 1997 & expected to grow at the rate of 10% per annum.

Physical Properties of the Product

Physical Properties of the Product
Physical Properties:


Property Unit Test Method Virgin PTFE 25% Glass Filled PTFE 25% Carbon Filled PTFE 60% Bronze Filled PTFE
Mechanical 1. Density gm/cc ASTM D-792 2.1-2.2 2.25 2.14 3.8
2. Tensile strength kgf/cm2 ASTM D-638 210-350 125-200 120-155 105-140
3. Elongation of Break % ASTM D-638 250-400 200-300 100-150 80-160
4. Compressive strength kgf/cm2 ASTM D-695 40-50 75-85 75-85 115-125
5. Compressive modulus kgf/cm2
4000 7000 8400 8800
6. Deformation A. 2 Hrs 23°C, 140kg/cm2 B. 24 Hrs. 23°C, 140kg/cm2 C. Permanent D. 2 Hrs. 150°C, 200kg/cm2 % ASTM D-621 12 15 8 50 9 11 7 50 4 5 2.5 33 4 5 2.5 40
7. Flexural strength kgf/cm2 ASTM D-790 57 42 96 80
8. Flexural Modulus kgf/cm2 ASTM D-790 3500-6300 16700 11900 13800
9. Impact Strength A. -20°C B. +20°C C. Static P-35 kg/cm2 cm kg/cm2 ASTM D-256 9 15 9.5 11 7.5 10 11 10
10. Hardness Scale D Shore 60-65 70-75 70-75 70-75


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