Schmincke Horadam Watercolors are high quality, professional watercolors that have a few special characteristics. The optimum amount of ox-gall is added to each color to give artists ultimate control with the flow and distribution of color. The binder which is used is Kordofan Gum Arabic from the Southern Sahara region. Like most natural products, the integrity and quality of the Gum Arabic differs from year to year, so Schmincke tests each batch of Gum Arabic every time, to select only the best crop of the respective year. The paint is also fully reusable when dried on a palette as Schmincke use the same formulation for their tubes and pans. This is unusual as many other brands of watercolor have a different formula for the pans which allows them to extrude the paint like clay and cut it into pieces to put into the pans.

Schmincke make a number of Horadam sets, including two limited edition sets produced to coincide with the centenary of the death of Josef Horadam, one of the founders of Schmincke & Co.