Auto-Body Spray Gun Cleaning SWMS
Spray gun and equipment cleaning operations. Covers solvent recovery, gun washer use, waste solvent storage, RPE selection, dermal protection.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Spray gun and equipment cleaning is a daily task in automotive refinishing workshops, panel shops and collision repair facilities across Australia. The work involves flushing solvent through HVLP and conventional spray guns, decanting waste thinners, operating enclosed gun-washing units and handling rags saturated with isocyanate-containing residues. Under WHS Regulation 2025, this work is classified as hazardous chemical handling under Chapter 7 and triggers mandatory written control measures because of confirmed inhalation, dermal and fire risks from volatile organic compounds including xylene, toluene, MEK and acetone. A Safe Work Method Statement is required where the cleaning process involves Schedule 1 high-risk construction work criteria or where exposure standards in the Workplace Exposure Standards for Airborne Contaminants (December 2024) may be exceeded. PCBUs must consult workers under s47 of the WHS Act, document controls under r39, and retain the SWMS for the duration of the work plus two years following any notifiable incident under r299.
Hazards identified
7 hazards covered, sorted by priority.
Acute CNS depression, chronic peripheral neuropathy, hepatotoxicity and exceedance of 8-hour TWA workplace exposure standards
Occupational asthma, sensitisation dermatitis and lifelong respiratory disability per Safe Work Australia isocyanate guidance
Flash burns, structural fire, business interruption and potential fatality from Class IB flammable liquid ignition
Chemical conjunctivitis, corneal burns and permanent vision impairment requiring emergency irrigation and ophthalmology referral
Vapour ignition causing flash fire, equipment damage and operator burn injuries from electrostatic spark initiation
Fall injuries, fractures and secondary chemical exposure compounded by reduced traction on epoxy floor coatings
Overnight workshop fire, total asset loss and insurer denial for breach of AS 1940 storage requirements
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Eliminate manual open-tray gun cleaning by transitioning to fully enclosed automatic gun-washer units that contain all solvent vapours within a sealed chamber.
- 2Elimination — Remove ignition sources within 3 metres of cleaning station including hot work, grinding, naked flame and non-rated electrical equipment per AS 1940.
- 3Substitution — Substitute high-VOC solvent cleaners with low-VOC water-miscible alternatives or bio-based cleaning agents where compatible with paint system manufacturer specifications.
- 4Substitution — Replace open metal waste bins with self-closing oily waste containers compliant with AS/NZS 2381 to prevent spontaneous combustion.
- 5Engineering — Install local exhaust ventilation capture hood directly above gun-washer with minimum 0.5 m/s face velocity, ducted externally and tested annually.
- 6Engineering — Bond and earth all solvent transfer containers using rated bonding cables and verify continuity with multimeter before each decanting operation.
- 7Administrative — Conduct pre-start SWMS sign-on, atmospheric monitoring quarterly against WES, and limit individual cleaning sessions to 20 minutes with documented rotation.
- 8Administrative — Maintain SDS register at workstation, train workers in spill response, and post emergency eyewash and shower location signage per AS 4775.
- 9PPE — Wear ANSI/AS 1716 compliant half-face respirator with A2 organic vapour cartridges, fit-tested annually, with cartridge change schedule documented.
- 10PPE — Use nitrile or laminated film gloves (minimum 0.4mm) per AS/NZS 2161.10, chemical splash goggles to AS/NZS 1337.1 and chemical-resistant apron.
Applicable Codes of Practice
Mandates risk assessment, control selection hierarchy and SDS register obligations under WHS Reg 2025 r342-r346 for solvent handling tasks.
Specifies bunding, ventilation, separation distances and waste storage requirements for Class IB and IC solvents used in gun cleaning.
Governs RPE selection for organic vapour exposure, mandatory fit-testing, cartridge change-out schedules and worker training under r44.
Directly addresses gun cleaning controls, isocyanate residue management and ventilation requirements for spray equipment maintenance areas.
High-Risk Construction Work triggered
Workshop solvent inventories for daily gun cleaning frequently exceed Schedule 11 manifest thresholds when combined with stored thinners and waste solvent drums.
Gun cleaning bays often lack mechanical ventilation meeting WES capture velocities, creating restricted-ventilation zones where solvent vapours accumulate above exposure limits.
PCBUs must document controls, consult workers under s47-49, and retain the SWMS for the work duration plus two years after any notifiable incident. Penalties are substantial and indexed; current maximum follows the prevailing WHS schedule.
Who this is for
- →Auto-body refinishers in collision repair workshops
- →Spray painters in commercial vehicle fleets
- →Workshop supervisors managing solvent inventories
- →WHS coordinators in panel and paint franchises
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
At a metropolitan collision repair workshop, the prepper begins shift with a pre-start toolbox talk where the supervisor opens the Auto-Body Spray Gun Cleaning SWMS on the workstation tablet. The team walks through the seven listed hazards, confirming the enclosed gun-washer LEV was tested last quarter and the A2 cartridge change-out log shows fresh cartridges fitted Monday. The prepper identifies a new hazard not on the SWMS — a recently relocated battery charger now sits within the 3-metre ignition exclusion zone — and the supervisor amends the SWMS dynamic control register on the spot, relocating the charger before sign-on. Each worker signs the attendance schedule electronically, acknowledging the isocyanate residue dermal control requiring laminated film gloves over nitrile when handling 2K guns. Mid-morning, atmospheric monitoring with a PID meter shows a transient VOC spike during a bulk waste decant; the operator pauses, refers to the SWMS spill and ventilation escalation procedure, increases LEV to high setting, and waits five minutes before resuming. At shift end, the SWMS is reviewed during debrief, the dynamic amendment is countersigned, and the document is filed in the digital register for the mandatory retention period under WHS Reg 2025 r299.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- Managing Risks of Hazardous Chemicals CoP; AS/NZS 1576 — Scaffolding