Pcb-Materials Another good how-to. These hints are worth gold! Some close friends, engineers, technicians and the like were admired with the quality achieved by this process. Again, the motivation arised after veryfing that in the brazilian market is very hard to find materials for doing an industry-grade PCB at home. There are those nasty pens (using them sucks)…there are transfer sheets (‘Letraset’ a load of work for doing a pcb) and finally there aren´t those special transfer papers, imported and mainly USA made. Even if we got them here, their cost would be prohibitive. Link.