REFLOW TRACKER Basic Hardware 17
The important products from PTFE thermal decomposition are:
At Temperatures Greater Than: Product
400°C See note*
430°C Tetrafluoroethylene
440°C Hexafluoropropylene
475°C Perfluoroisobutylene
500°C Carbonyl fluoride*, which, in moist air,
converts to the acid gas hydrogen fluoride
*
May also be produced if PTFE tape is kept at 400°C for an extended time.
Health Hazard Data
• Inhalation of decomposition products from PTFE can produce ‘polymer fume
fever’, which has symptoms similar to influenza.
• There is no risk from ingestion or skin contact.
• There are no medical conditions generally aggravated by exposure to PTFE.
Emergency and First-aid Procedures
• If there is accidental contact with PTFE fumes, remove the person
concerned to clean air.
• Self-contained breathing apparatus and protective clothing should be worn
when fire-fighting.
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