This is the only brush designed to work perfectly with Gamblin Gamvar Varnish. Get the depth of color, the saturation of color, and precisely the gloss level you want easily, every time. This brush has the correct thickness and stiffness — soft enough to contour to the texture of your work, yet stiff enough to evenly and thinly varnish your painting. Works with Gamvar Gloss, Satin, and Matte on oil and acrylic paintings.