Tempered masonite eliminates the guesswork from substrate preparation. Ampersand's Hardbord arrives uniformly smooth on both surfaces, providing neutral ground for whatever coating system you choose, traditional gesso, absorbent grounds for watercolor, or specialty textures for encaustic and mixed media. The tempering process compresses wood fibers under heat and pressure, creating exceptional dimensional stability that resists warping even when you apply multiple wet layers or work in humid conditions.

At 1/8-inch thickness, these panels balance rigidity with manageable weight. The density handles aggressive mark-making and surface manipulation without flexing, while remaining light enough for larger pieces. Smooth, consistent texture means your ground application determines final surface character rather than fighting underlying irregularities. Cut panels to exact dimensions for specific projects or unusual formats that standard sizes don't accommodate.

Artists working with experimental techniques appreciate starting from this reliable foundation. Apply rabbit skin glue and chalk gesso for traditional oil painting, build absorbent surfaces for casein or gouache, or create custom textures with modeling pastes and aggregates. The neutral substrate responds predictably to whatever you layer onto it.