Ultra-easy-to-wash mildew-proof high-quality wall paint price list, how much is a barrel of 20kg? 1 Shengfa Ultra-easy-to-wash mildew-proof high-quality wall paint 20kg a barrel of 230 yuan 2 waterproof, stain-resistant, washable, high-temperature and high-humidity F66 mildew-proof paint-a set of 24kg—-912 yuan.