On site there's nowhere to hide from the sun — unprotected outdoor workers can hit their UV exposure limit in about 10 minutes of summer sun (ARPANSA). EcoZinc Natural Mineral Sunscreen SPF50 Clear is a 100% mineral, zinc-only sunscreen made in Rocklea, Brisbane. Six straight-up reasons it's built for Australian outdoor workers: Extreme UV cover, union-trusted, chemical UV filter free, and cheap bulk pumps and sachets. Queensland zinc, Queensland sunscreen.