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WHS Management for Spray Painting

Control isocyanate exposure with compliant spray booths, supplied-air RPE, and health surveillance programs.

Spray painting with two-pack polyurethane systems is the primary source of isocyanate exposure in Australian auto body workshops. Isocyanates cause occupational asthma that is irreversible once sensitisation occurs, and even brief unprotected exposure can trigger permanent respiratory disability. The workplace exposure limit for isocyanates drops by 75 per cent to 0.005 mg/m3 from 1 December 2026. A comprehensive WHS management system ensures spray painting operations meet current and incoming regulatory requirements while protecting painters from Australia's most regulated chemical hazard class.

Key Hazards

Isocyanate vapour and aerosol from two-pack paint applicationSolvent vapours (xylene, toluene, MEK) causing CNS depressionOverspray particulates causing respiratory irritationFire and explosion risk from flammable solvents and aerosolsSkin sensitisation from isocyanate and catalyst contactNoise exposure from spray equipment and extraction systems

Regulatory Requirements

HRCW Categories

Work in a contaminated or flammable atmosphere, confined space (booth maintenance)

Section 26A Codes (binding 1 July 2026)
Spray Painting and Powder CoatingManaging Risks of Hazardous Chemicals in the WorkplaceConfined Spaces

SWMS Required

Related Sectors

Need Help with Spray Painting WHS?

We help spray painters and workshop owners develop compliant isocyanate management plans, spray booth testing programs, and health surveillance systems.

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