An artist's cradle includes a sheet of rigid plastic having a paintable surface on at least one planar surface thereof and a rigid base frame mounted to the underside of the sheet. The sheet is substantially neutral or neutral alkali ph and treated with a heat treatment around at least a periphery of the underside of the sheet. The heat treatment includes heat oxidizing the periphery using a heat source. The rigid frame is bonded by an adhesive to the periphery of the sheet following the heat treatment.
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