Pure Carbon Film: Carbon films with a thickness of 15-25nm with no Formvar used during manufacturing. Completely free of Formvar. Carbon films are thin and highly transparent to electrons. They exhibit very fine grain and minimal interference with specimen structure. Films are ready to use upon receipt. The pure carbon films tend to be more delicate than support films with a Formvar backing and require more delicate handling during specimen preparation. Available on Cu, Ni, and Au TEM grids with 200, 300, and 400 mesh. Mo grid only available in 200 mesh hex. Al and Ti only available in 400 mesh.