Gouache tubes and a "Chinese white" tube was added to boxes for this purpose. Later that century, for decorative uses "poster paint" was mass-produced, based on the much cheaper dextrin binder. It was sold in cans or as a powder to be mixed with water. The dextrin replaced older paint types based on hide glue or size. During the twentieth century, gouache began to be specially manufactured in tubes for more refined artistic purposes. Initially, gum arabic was used as a binder but soon cheaper brands were based on dextrin, as is most paint for children. A relatively new variation in
Water miscible oil paint Lukas (BERLIN), Martin F. Weber Co. (wOil), Reeves (tube sets and complete painting set), Royal Talens (Cobra Artist and Cobra Study), and Winsor & Newton (Artisan Water Mixable Oil Color). Although this type of paint may be thinned with water, artists may prefer to use specially prepared mediums for improved texture and control. These mediums improve flow (i.e., make the thinned paint less runny and more easily controlled) and can slow or speed up drying time. Mediums are offered by many of the paint manufacturers. Royal Talens also has produced a water mixable painting paste that acts as a thickener