Ampersand Unprimed Basswood Artist Panels have a limited wood grain and are exquisitely smooth; free of seams, knots and raised fibers. These sturdy panels do not bend, give or flex, and have a have a smooth, uniform finish. The panels are thoroughly tested for warp-resistance and durability. Great for encaustic, collage, mixed media and more! Ampersand Artist Panels can also be used for mounting canvas and giclee, and even wood engraving! Panels are constructed with a heavy-duty solid basswood cradle frame and mounted with a thick basswood top. The premium basswood will not flex under even the heaviest layers of paint or wax. The surface accepts all painting grounds and allows for even application of any painting medium.