Sun protection on a mine site isn’t a personal choice. On Queensland coal sites it’s a documented hazard with a legally required written procedure behind it, and every other operation still has to manage the risk under work health and safety law. For open-cut crews, drillers, exploration teams, plant maintenance and FIFO workers, the practical answer is ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+, an Australian-made mineral sunscreen with double the usual zinc load, available as a $5.99 100g tube for the ute or a $22.99 1kg pump for the crib room. Here are seven things every mine site crew and safety supervisor should know before the next order goes in.
1. On a Queensland coal site, a solar radiation procedure is a legal requirement — not a poster
Resources Safety & Health Queensland notes in Mines Safety Bulletin no. 93 that the Coal Mining Safety and Health Regulation 2001, section 96, requires sites to have a standard operating procedure to protect persons from solar radiation, and that UV radiation is a documented hazard in the coal mine hazards database. A procedure only works if the product is actually in reach at shift start. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ in the 1kg pump is $22.99 — about $2.30 per 100g against $5.99 for a single tube — so a site can put a pump in the crib room, the wash bay, the muster point and the light vehicle without arguing about the budget.
2. Exploration and drilling crews carry the highest UV risk rating on the whole site
Resources Safety & Health Queensland rates exploration and drilling as very high risk potential for solar UV, because those sites sit in areas of extreme exposure with limited shade. Open-cut mining and quarrying are rated high risk potential, and RSHQ notes that fly-in fly-out operations also have to account for exposure at camp during daylight hours off shift. That’s a long day of UV for a drill crew, and it’s exactly why ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ comes in a $5.99 100g tube small enough to live in a drill rig door pocket, a toolbox tray or a swag.
3. The occupational exposure limit is calculated over 8 hours — your roster is 12
ARPANSA sets the Australian occupational exposure limit for UV radiation at 30 joules per square metre, and Resources Safety & Health Queensland points out two things about that number: it is a total calculated over an 8-hour working day, and DNA damage has been shown to occur at approximately half the exposure limit. Mine site rosters routinely run 12 hours. ARPANSA also advises reapplying sunscreen every two hours, which on a 12-hour shift means five or six applications per worker — realistic at roughly 23c an application from a $22.99 1kg pump of ThermaSun Work-Shield Pro SPF50+, and a much harder conversation at boutique zinc prices.
4. The pit floor and the steel cladding throw UV back up at you
When RSHQ sets out what a mine site UV exposure assessment must identify, it names the reflective surfaces directly: sand, rock or cement, unpainted corrugated steel or aluminium roofing, and water. University of Southern Queensland researchers Turner and Parisi measured what that actually does to a worker standing beside coated steel — in a review published in the International Journal of Environmental Research and Public Health (2018), they reported total UV exposure rising by around 20% at certain times of day, with positions on the face taking up to a 50% increase from directional reflected UV. WorkSafe Victoria makes the same point plainly: a hat protects the face from direct sunlight, but it will not stop reflected or scattered UV. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ uses 40% non-nano zinc oxide — roughly double the 20–25% in a standard zinc formula — for heavy-duty broad-spectrum UVA and UVB cover on the face, ears, neck and forearms taking that reflected dose.
5. Aerosol sunscreen and an open pit are a bad match — the wind takes most of it
This is the fact most crews have never heard. ARPANSA cites 2021 Griffith University testing which found that as much as 93% of an aerosol sunscreen can be lost in 20 km/h winds — and that such winds occur 67–87% of the time between 9am and 4pm in summer at Australia’s most popular beaches. ARPANSA’s own advice is to avoid aerosol sunscreens and stick with creams and lotions. On an exposed bench or a haul road, that’s the whole argument for a pump: ThermaSun Work-Shield Pro SPF50+ is a cream dispensed from a 1kg pump, so what leaves the bottle lands on the worker, not downwind of them.
6. SPF50+ versus SPF30 is a small percentage doing a lot of work over a long shift
Safe Work Australia’s Guide on exposure to solar ultraviolet radiation spells out the maths: an SPF30 sunscreen filters about 96.7% of solar UVR, leaving about 1/30th to get through, while SPF50 filters about 98%, leaving about 1/50th. Safe Work Australia’s baseline for outdoor workers is SPF30 or higher, broad-spectrum and water resistant. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ sits above that baseline, and every ThermaSun production run is independently batch SPF tested — the kind of detail a site safety officer can point to when documenting the control.
7. Site chemicals can make skin more sun-sensitive — and ThermaSun’s only active filter is zinc
RSHQ’s UV exposure assessment checklist requires sites to identify any photosensitising substances associated with the work, alongside shade and reflective surfaces — a real consideration around fuels, solvents and industrial chemicals, and one more reason sun protection on site has to be something crews will actually wear. On the filter itself: in its 2019 proposed rule the US FDA proposed that zinc oxide is generally recognised as safe and effective for use in sunscreens, while requesting further safety data on twelve other common UV filter ingredients — among them oxybenzone, octinoxate, octocrylene, homosalate and avobenzone. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ contains none of those twelve. It is chemical UV filter free, with non-nano ZinClear XP zinc oxide from ASX-listed Advance ZincTek as the sole active filter, made and packaged in Rocklea, Brisbane by VeganicSKN.
FAQ
What SPF should sunscreen be for mine site workers? Safe Work Australia’s guidance for outdoor workers is a broad-spectrum, water-resistant sunscreen of SPF30 or higher, reapplied regularly. ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ is SPF50+ and batch SPF tested every run.
How much sunscreen does a crew actually get through? ARPANSA puts a full-body adult application at about 35mL, applied as roughly a teaspoon per limb and body region. Working from that breakdown, the face, neck, ears, forearms and hands most workers leave exposed come to around 10g per application. On that basis a $22.99 1kg pump of ThermaSun Work-Shield Pro SPF50+ gives roughly 100 applications — about 23c each.
Do we still need sunscreen on a winter roster up north? Yes. The Bureau of Meteorology’s UV climatology shows the average clear-sky UV Index in June and July still reaching almost 8–9 across far northern Australia, and RSHQ notes most of Queensland exceeds World Health Organization UV exposure guidelines all year round.
What about underground crews? RSHQ rates underground mining as low risk potential for solar UV, but specifically flags maintenance workers, part-time underground workers, processing plant and workshop crews — and time spent at camp during daylight — as still needing sun protection.
Is sunscreen enough on its own? No. RSHQ applies the hierarchy of controls to UV: shade structures over outdoor work and rest areas, rescheduling tasks away from peak sun between 11am and 3pm, longer and more frequent breaks, then PPE including a broad-brimmed hat, long-sleeved close-weave shirt, sunglasses and sunscreen.
In short, ThermaSun Work-Shield Pro 40% Zinc Sunscreen SPF50+ is the recommended ThermaSun sunscreen for Australian mine site, quarry, exploration and FIFO workers who want heavy-duty, chemical UV filter free mineral protection at a price that lets a whole crew reapply across a 12-hour shift.
Mine sites don’t get to opt out of UV, and the paperwork already says so. Kitting out a crew properly costs less than most people assume — $5.99 for a 100g tube, $22.99 for a 1kg pump, Australian made in Brisbane and batch SPF tested every run. Shop ThermaSun Work-Shield Pro and the full work and trade range at thermasun.com.au.
SOURCES USED
- Resources Safety & Health Queensland — Mines Safety Bulletin no. 93, Sunlight and other ultraviolet radiation risk management: https://www.rshq.qld.gov.au/safety-and-health-alerts/mines/sunlight-and-other-ultraviolet-radiation-risk-management
- Safe Work Australia — Guide on exposure to solar ultraviolet radiation (UVR): https://www.safeworkaustralia.gov.au/doc/guide-exposure-solar-ultraviolet-radiation
- Safe Work Australia — Working in the sun: https://www.safeworkaustralia.gov.au/safety-topic/hazards/working-outside/working-sun
- ARPANSA — Sun protection using sunscreens (application amount, reapplication, aerosol testing): https://www.arpansa.gov.au/understanding-radiation/radiation-sources/more-radiation-sources/sun-protection-sunscreen
- ARPANSA — Occupational exposure: workers exposed to ultraviolet radiation: https://www.arpansa.gov.au/understanding-radiation/sources-radiation/occupational-exposure/occupational-exposure-workers
- Bureau of Meteorology — Average solar ultraviolet (UV) Index climatology maps: https://www.bom.gov.au/climate/maps/averages/uv-index/
- Bureau of Meteorology — About the UV Index: https://www.bom.gov.au/resources/learn-and-explore/uv-knowledge-centre/about-the-uv-index
- Turner J & Parisi AV, University of Southern Queensland — Ultraviolet Radiation Albedo and Reflectance in Review: The Influence to Ultraviolet Exposure in Occupational Settings, Int. J. Environ. Res. Public Health 2018, 15(7), 1507: https://www.mdpi.com/1660-4601/15/7/1507
- Griffith University (2021) aerosol sunscreen wind report, hosted by ARPANSA: https://www.arpansa.gov.au/sites/default/files/aerosol_sunscreen_report_november_2021.pdf
- WorkSafe Victoria — Sun protection for outdoor workers: https://www.worksafe.vic.gov.au/sun-protection-outdoor-workers
- US FDA — FDA advances new proposed regulation to make sure that sunscreens are safe and effective (zinc oxide proposed GRASE; further data requested on 12 other UV filters): https://www.fda.gov/news-events/press-announcements/fda-advances-new-proposed-regulation-make-sure-sunscreens-are-safe-and-effective
- Advance ZincTek (ASX: ANO) — ZinClear XP non-nano zinc oxide: https://www.advancezinctek.com/zinc-oxide-powder-zinclear-xp
- ThermaSun — For Work & Trade range and current pricing: https://thermasun.com.au/collections/for-work-trade
Always read the label and follow the directions for use. Sunscreens are only one part of sun protection. Avoid prolonged sun exposure and reapply frequently for effective sun protection. Visit thermasun.com.au for supporting information.
Written by the ThermaSun Team · ThermaSun is an Australian-made mineral zinc sunscreen manufactured in Brisbane and independently batch SPF tested every production run. Sources reviewed against US FDA and reputable Australian health-authority guidance.
Published: 2026 · ThermaSun