Homebrew PCBs

Hello,

your developer should be 9:1 ratio. 9 parts warm water to 1 part
developer. How i do it, when Im "burning" the image, I have the
developer in its tub sitting in another with hot water. That heats up
the developer just right. You dont need a bubbler in with the
developer. just swish it over the board like your doing, when the
image youve burned appears, remove board and rinse. I dont do
laminating on my boards, but I think a spray mask would work better
for you.

heres a link for the product:
http://www.soselectronic.com/?str=371&artnum=S035740

hope this helps!
Joe