When I started anodising at 24v I was getting 25 amps per sq ft and dying after 30 minutes of anodising left a really nice deep colour but when you looked closely the surface had become pitted and also the anodising had added .015mm to the surface. That was at 62deg. F. That might suggest the pore size created by this current density is still ok to accept dye but the effect of changing temperature obviously remains to be seen.
Not sure if this really helps but I thought I would throw it into the ring anyway.
|