Basecoat Application (Waterborne & Solvent) SWMS
Mixing, colour verification and spray application of waterborne and solvent-borne basecoat colour systems in a vehicle refinishing booth.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Basecoat is where substitution delivers the largest real reduction in workshop exposure. Waterborne basecoat systems remove most of the solvent burden and the flammable-atmosphere risk that solvent-borne colour carries, and are now the default across much of the Australian trade. This Safe Work Method Statement covers mixing, spray-out colour verification and spray application of both waterborne and solvent-borne basecoat, sets out where the controls differ between the two, and addresses the waste-stream difference that catches shops out — waterborne wash water must go to trade waste under agreement, never to stormwater.
Hazards identified
9 hazards covered, sorted by priority.
Inhalation exposure; irritation
Fire
Water contamination
Respiratory exposure
Fire
Air emission
Dermatitis; inhalation exposure
Eye injury; ignition of vapour
Water contamination; regulatory breach
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Substitute waterborne basecoat where the finish allows
- 2LEV running
- 3nitrile gloves
- 4spray out test cards inside the booth, not at the bench
- 5Eliminate ignition sources
- 6bonding when decanting solvent product
- 7Trade-waste agreement in place
- 8never discharge to stormwater
- 9Booth LEV running
- 10respirator worn — air-fed where the system is 2K or solvent-borne
- 11Interlocked extraction
- 12ignition control
- 13Maintained booth filters
- 14Nitrile gloves for all rinsing
- 15respirator kept on while the booth is in use
- 16use an enclosed wash station rather than open trays
- 17Use only booth-rated drying equipment
- 18keep blower pressure low
- 19eliminate ignition sources during flash-off
- 20Waterborne rinse to trade waste under agreement
- 21solvent rinse recovered to sealed dangerous-goods drum
Applicable Codes of Practice
Primary approved code for this work — booth and mixing-room design, ventilation, RPE selection, isocyanate handling and health-monitoring triggers.
Hazardous chemicals register, SDS, labelling, storage segregation and the risk-management process for paints, hardeners and solvents.
Definitive national guidance on isocyanate sensitisation, air-supplied RPE, exposure standards and respiratory health surveillance.
Applies to compressor, spray gun, air-tool and panel-work noise where the 85 dB(A) LAeq,8h exposure standard may be exceeded.
Ventilation, lighting, eyewash and emergency shower provision, and amenities for workers handling hazardous chemicals.
The hierarchy of control this SWMS is structured around — elimination and substitution before engineering, administration and PPE.
Design, airflow, classification and maintenance requirements for the booth and mixing room this SWMS relies on as its primary engineering control.
Fit-testing, facial-seal and maintenance requirements — the basis for the air-supplied respirator program.
Performance standard the air-fed hood and A2P2 respirators must be certified to.
Dangerous-goods store design, quantities, bunding and separation for paints, thinners and solvents.
Who this is for
- →Spray painters applying basecoat colour
- →Panel and paint workshops
- →Shops transitioning from solvent to waterborne systems
- →WHS and environmental managers in refinishing
What you receive
- ✓Fully editable Microsoft Word (DOCX) SWMS — populate company, ABN, site and worker fields directly
- ✓Task-by-task risk assessment across occupational health, safety and environment, with severity × likelihood scoring before and after controls
- ✓Controls written to the hierarchy of control — elimination and substitution first, PPE last
- ✓High risk construction work classification with the specific s. 291 category and why it is triggered
- ✓Isocyanate health-monitoring and air-monitoring requirements stated as legal duties, not optional extras
- ✓PPE schedule referencing AS/NZS 1715 and 1716, including air-supplied respirator requirements
- ✓Training and competency register covering fit-testing, SDS interpretation and isocyanate awareness
- ✓Emergency procedures for chemical splash, inhalation, sensitisation episode, solvent fire and spill
- ✓Worker sign-on register and review/sign-off block ready for immediate site use
Worked example
A workshop moved to waterborne basecoat for air-quality reasons, then continued rinsing gun cups at the wash bay as it always had. The wash water reached the stormwater drain and triggered an EPA notice. Installing a bunded wash station discharging to trade waste — and recording it in the SWMS — turned a compliance failure into a controlled process.
Related legislation
- Work Health and Safety Act 2011 (NSW) — primary duty of care, s.19
- Work Health and Safety Regulation 2025 (NSW) — Chapter 3 Risk Management
- Work Health and Safety Regulation 2025 (NSW) — Part 7.1 Hazardous Chemicals (register, SDS, labelling, storage)
- Work Health and Safety Regulation 2025 (NSW) — Part 7.1 health monitoring provisions; Schedule 14 lists isocyanates
- Work Health and Safety Regulation 2025 (NSW) — s. 291 High Risk Construction Work and the SWMS duty
- Protection of the Environment Operations Act 1997 (NSW) — air emission and waste disposal duties
Frequently asked questions
Is waterborne basecoat actually safer?
For solvent exposure and fire risk, yes — substantially, which is why it is the preferred substitution. But it is not hazard-free: it still contains pigments and co-solvents, still requires booth extraction and respiratory protection when atomised, and it introduces a trade-waste obligation for wash water that solvent systems handle differently.
Is this SWMS specific to NSW?
Yes. It cites the Work Health and Safety Act 2011 (NSW), the Work Health and Safety Regulation 2025 (NSW) and SafeWork NSW guidance. The same document is available for every other state and territory — the legislative references are swapped for that jurisdiction.
Do I legally need a SWMS for spray painting in a workshop?
A SWMS is legally mandatory under s. 291 only for high risk construction work. Fixed-workshop spraying is generally not construction work — but you still have a duty under the WHS Regulation to document how you control a hazardous-chemical risk of this severity, and the Spray Painting and Powder Coating Code of Practice is the benchmark you will be measured against. The moment you spray on a construction site, or in a contaminated or flammable atmosphere, the SWMS becomes mandatory.
Is isocyanate health monitoring really compulsory?
Yes, where there is ongoing use of isocyanates and a significant risk of exposure. Isocyanates are listed in Schedule 14 of the WHS Regulation, which triggers the health-monitoring duty — baseline and periodic respiratory function testing and medical assessment by a registered medical practitioner. It is one of the most commonly missed obligations in Australian panel shops.
Will a cartridge respirator do instead of an air-fed hood?
Not for continuous two-pack spraying. Negative-pressure cartridge respirators are not accepted as adequate protection against isocyanate spray mist — the accepted control is an air-supplied (air-fed) respirator. Air monitoring is how you demonstrate that the RPE you have selected is actually adequate for your process.
How do I know if my booth ventilation is good enough?
Airflow should be verified against the booth specification before each shift, the LEV inspected and tested on a documented schedule under AS/NZS 4114, and the whole control set validated with personal air monitoring. A booth that passed its annual service can still fall below specification as filters load between changes.
Can I edit the document?
Yes — it is a fully editable DOCX written as a site-specific template. You complete the company, ABN, site, plant and worker sign-on fields, and adjust the tasks to match your actual process before use.
Who wrote it?
It is authored by an occupational hygiene team led by a Certified Occupational Hygienist (CIH), which is why the exposure, ventilation and monitoring content goes considerably further than a generic template.