Taskboard has an edge that is identical to the surface in both color and texture.  This quality allows architects to make visual models that do not need to be painted.  Just sand joints after glue dries and achieve perfecty invisible joints.   Sanding can be done with emery board, sanding paper and pads, even power sanders.  Make topographic models, any cutting mistake can be corrected by sanding to achieve perfect curves on your topo landscape model and site model.  Sand down steps to create a smooth topographic model, model railroad scenery, diorama or mass 3d object.  Taskboard can also be easily cut, sanded, formed glued, and painted