Purchase the Strathmore® 300 Series Canvas Pad, 9" x 12" at Michaels. Made from 100% cotton, triple primed canvas, the sheets can withstand heavy applications & layers of paint. Created with plein air painters in mind, designed to meet the needs of on-location artwork. rtists love this supreme surface for acrylic paints, oil paints, water-mixable oil paints, acrylic inks, permanent inks, mixed media, paint pouring, acrylic markers, stencil work & any other large profile art expression.