1)EN-71 and ASTM D-4236 certifications. 2) Little perceptible wet-to-dry color shift (paint,art paint,pigment) 1. Water color in Magi-Wap is made of high quality pigment and natural plant gum with modern technology. 2. Color is vivid, paste is thin and soft, especially their transparent and saturated effects are very excellent.3. Colors light fastness, covering power and fluidity are excellent, ...