[sdiy] My PCB positives are see through!

[Paul Perry]

Provided the printing is even, there won't be any problems,
if you get the exposure right.

If you mean that large areas of black are dense around the 
edges, and light at the centre, you need a new print company.
On the bright side, any problems inside large areas, can be 
touched up with opaque ink beforehand, if need be.

paul perry melbourne Australia