This guidance is for employers and employees. It suggests solutions to reduce or eliminate the workplace health and safety risks of isocyanate paint spraying.
Spraying motor vehicles and other surface types with two-pack polyurethane paints containing isocyanates, for example polyisocyanates, presents a risk to employee health.
Spraying generates a mist that may be inhaled and cause respiratory sensitisation and occupational asthma.
Once a person is sensitised, exposure to trace amounts of isocyanates can trigger asthma symptoms, which means the person can no longer work with isocyanates.
Organic solvents and thinners used to clean spray guns can also cause dermatitis through skin contact and affect the central nervous system and other organs through inhalation.
The following solutions can help to eliminate or reduce the risks:
Make sure that: