Virgin Molding – F4 RB
HaloPolymer PTFE Fluoroplast-4 grade RB (F-4RB) is a product of suspension polymerization of TFE subjected to grinding.
This fully fluorinated resin has excellent chemical stability, electrical and mechanical properties and can be used for production of a variety of general purpose articles by compression molding technique. This material can be used for production of articles for chemical, mechanical and low-friction applications.
Typical applications: Can be used as a raw material for production of pre-sintered and fine cut grades. Grade RB can also be used fot general purposes: molded sheets, small parts, etc.
Availability: 28 kg cardbox with 2 x 14 kg polyethylene inserts.
TYPICAL PROPERTIES OF PTFE GRADE RB
|PROPERTIES||UNITS||TYPICAL VALUE||TEST METHOD|
|Appearance||–||White, easily lumping powder, without visible inclusions||Visual
|Particle size, average diameter (d50)||μm||150-250||Laser-diffraction analyses
|Water content, max||% wt||0,02||internal method1|
|Bulk density||g/l||450-600||internal method1|
|Density (SSG)||g/sm3||2,15 – 2,17||internal method1|
|Tensile strength at break, min||MPa||20||internal method1|
|Elongation at break, min||%||250||internal method1|
|Mould shrinkage||%||2,2||internal method1|
|Melting point||˚C||342||ASTM D4894|
1) The value of the parameters is per GOST, because manufactured products are analyzed according to GOST (Russian State Standard). The sample preparation procedure has a difference with the ASTM. The standard of the company is GOST 10007-80 (Specific molding pressure is 29.4 MPa with dwell time of 1 minute, temperature of heat treatment of plates for the samples is 380-390 °C, and time of heat treatment is 13 hours).
More detailed information:Back to Polytetrafluoroethylene (PTFE)