These colors hold a brush stroke completely and exhibit much of the desired qualities of oils along with some great benefits! Colors clean up with soap and water and dry four times faster than conventional oil, allowing them to be painted over in just 24 hours! Water-Mixable Oil Colors. You can paint with H2Oils using traditional techniques including thick over thin and wet on wet. Manufactured by Royal Talens, one of the largest and most respected names of fine artist’s paints in the world today.