Fluoropolymers minimum service temperature C examples

This property can be modified by additives and a rating is inevitably arbitrary. We suggest the following rating but others can be valid  

ISO 12086-1 1995 Plastics - Fluoropolymer dispersions and moulding and extrusion materials -Part 1 Designation system and basis for specifications ISO 12086-2 1995 Plastics - Fluoropolymer dispersions and moulding and extrusion materials - Part 2 Preparation of test specimens and determination of properties 

Polytetrafluorethylene or PTFE (sometimes called TFE) is the most commonly used, the best known and, perhaps, has the highest performance, with excellent performance/cost ratios. Its main drawback is the impossibility of processing it by conventional molten-state methods. 

The fluorine content is theoretically 76%. Crystallinity is very high, 95%, for example. PFA and FEP are very like PTFE with very similar fluorine content and properties, but are melt processable and more expensive. 

FEP can be processed by injection and extrusion and offers the same advantages as PTFE, but to a lesser degree. The upper service temperature is not so good, inferior by roughly 50°C. 

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