Semifinished PTFE Products

SECTION 2: Hazards identification

3.1 The primary hazard associated with these polymers is the inhalation of fumes from overheating or burning Heating PTFE above 300 degrees C may liberate a fine particulate fume 3.2 Polymer fume fever, a temporary flu-like condition with fever chills, nausea, shortness of breath, chest tightness, muscle or joint ache. 3.3 The symptoms are often delayed 4 to 24 hours after exposure. These signs are generally temporary, lasting 24-48 hours and resolve without further complications. 3.4 However, some individuals with repeat episodes of polymer fume have reported persistent pulmonary effects. Exposure to decomposition products from PTFE heated above400 degrees C may cause pulmonary inflammation, hemorrhageor oedema. 3.5 These more serious consequences of exposure may occur from extreme thermal decomposition of PTFE witch can liberate fume particles, and toxic gases especially under condition of poor ventilation and/or confined spaces. 3.6 These decomposition products may initially produce chest tightness or pain, chills, fever, nausea, with shortness of breath, cough, wheezing and progression into pulmonary oedema.