Hardbord is the perfect substrate for those who prefer to create their own grounds and unique textures. Hardbord is a 1/8" thick tempered wood panel that provides more strength and permanence than an untempered or conventional hardboard. This Hardbord accepts grounds for oils, acrylics, egg tempera, encaustic and gold leaf, with no preparation required!Details:BrownAvailable in multiple sizes1/8" profile1 panel (3 count for 5" x 7")Will not warp, crack or bendNo preparation requiredEco-friendlyMoisture resistant and formaldehyde free