This guidance note provides information on rosin or colophony fluxes used in metal soldering which can cause health problems if fumes are inhaled or if flux gets on the skin.
Rosin or colophony fluxes used in metal soldering can cause health problems if fumes are inhaled or if flux gets on the skin. Short term problems can include nose, sinus, eye and throat irritation and skin rashes, and long term problems may include asthma and dermatitis. Those most likely to be affected are people who do a lot of hand soldering, typically while repairing electrical or electronic equipment.