INKZALL™ Liquid Paint Markers are tough, valve-action markers built for demanding conditions. The durable acrylic nib works on surfaces from -10°C to +145°C, including rough, dirty, greasy, or dark surfaces. Perfect for concrete, metal, PVC, rubber, and tyres, with quick-drying, water- and UV-resistant ink that stays visible for up to 6 months. The metal barrel ensures construction-site durability, and xylene-free paint makes it safe to use. Usage tip: Shake with the cap on, then pump carefully until ink flows to the nib.