Holbein watercolors for medium masking ink W466 55ml ...- xoa xà phòng dub belize ,If you draw with this ink before drawing with watercolors, you can clear it there. The same applies to drawing surfaces. <How to use> Thin with water or soapy water if you like, apply it to the screen with a brush or a pen. After drying, draw from above, and after drying, scrape the ink portion with an eraser. Use watercolors that are strong in surface strength, such as Waterford Watercolor ...