
Children's toy nano waterborne paints use nano-SiO2 (10-20 nm, pure waterborne, zero VOC) + nano-ZnO (20-50 nm, antibacterial >99%) + nano-TiO2 (5-15 nm, photocatalytic) in pure acrylic/waterborne PU. EN 71-3:2019 (Toy Safety Part 3: 19 heavy metals, simulated gastric fluid, ICP-OES): Sb <45, As <3.8, Ba <18750, Cd <1.3, Cr <37.5, Pb <2.0, Hg <7.5, Se 80%.