HSE Guide MR2 “Spraying 2 Pack Products in Spray Booth or Room”
This HSE Guide/Information sheet will help employers, the self-employed and franchisees to comply with the Control of Substances Hazardous to Health Regulations 2002 (CoSHH), as amended, to control exposure to Isocyanates and protect workers’ health.
This sheet describes good practice using air-fed RPE (breathing apparatus) and a dedicated extracted spray booth or room.
It covers the points you need to follow to reduce exposure to an adequate level. It is important to follow all the points, or use equally effective measures.
‘Isocyanate’ means all isocyanate-based two-pack products. It may be described as ‘prepolymer’ this still contains active isocyanate.
Main points
- Spraying produces high levels of invisibly-fine isocyanate mist, the main source of exposure
- Make sure the controls work and you know the ‘clearance time’.
- Check the controls using biological monitoring – see sheet G408
- Use health surveillance for asthma and dermatitis – see sheets G402 and G403
- Also see sheet MR0
