This board features a ready-to-use surface created for the unique demands of encaustic painting and mixed media. A heat-resistant ground is applied to Ampersand?ÇÖs sealed Hardbord panel to form a bright, smooth and velvety surface. The ground is highly absorbent and it holds tight to layers of wax and collage without of cracking or separation. A variety of mediums can be used on the boards to create incredible textures, colors and patterns. They are also great for mixed media, collage and photo transfers.