Primer / Etch-Primer / Surfacer Application SWMS
Mixing, spray application and sanding of etch primers, surfacers and build primers on prepared vehicle panels.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Primers and etch primers carry hazards the topcoat does not: chromate pigments in some etch systems are hexavalent chromium compounds and carcinogens, and 2K build primers contain the same isocyanate hardeners as clearcoat. This Safe Work Method Statement covers primer mixing and reduction, booth spray application, and surfacer sanding — the last of which is the highest dust-generating task in the shop and a genuine respirable crystalline silica exposure. It leads with substitution, because specifying chromate-free primers wherever the finish allows removes a carcinogen from the workshop entirely rather than merely controlling it.
Hazards identified
9 hazards covered, sorted by priority.
Sensitisation; hexavalent chromium is a carcinogen
Fire
Contamination
Respiratory sensitisation
Fire
Air emission
Silicosis; chronic respiratory disease
Laceration, eye injury
Contamination
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Substitute a chromate-free primer wherever the specification allows
- 2ventilated mixing room with LEV
- 3nitrile gloves
- 4A2P2 respirator
- 5Bonding and earthing
- 6eliminate ignition sources
- 7Bunded bench
- 8spill kit available
- 9Booth LEV running
- 10air-fed respirator for 2K systems
- 11check the SDS to confirm whether the primer is isocyanate-cured
- 12Interlocked extraction
- 13Maintained filters
- 14HVLP gun technique
- 15On-tool extraction connected and working
- 16P2 respirator
- 17wet sanding where the finish allows
- 18Tool guards in place
- 19eye protection
- 20Capture dust at source
- 21no wash-down to stormwater
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
- →Panel preparation and primer technicians
- →Refinishing workshops and smash repairers
- →Restoration and custom paint shops
- →WHS managers overseeing surface preparation
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 shop assumed only the clearcoat stage needed air-fed respiratory protection and sprayed 2K etch primer in half-face cartridge masks. Reviewing the Safety Data Sheet showed the primer hardener was the same polyisocyanate class as the clear. Extending air-supplied RPE to all 2K stages — and moving to a chromate-free etch primer — closed an exposure gap the shop did not know it had.
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
Does primer really need the same protection as clearcoat?
If it is a 2K primer, yes — check the Safety Data Sheet for the hardener. Many build primers and etch primers use the same polyisocyanate chemistry as clearcoat, so they warrant the same air-supplied respiratory protection and booth controls.
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.