Hello
I wonder if anyone has had any luck using alternative positive resist developers with Kinsten presensitised PCBs, as opposed to the genuine article. I know NaOH is commonly used as developer, but does this work with the Kinsten boards and if so at what concentrations?
I know I should just do a test but those boards are expensive and maybe someone already knows the answer.
Tim Polmear
Tim - I can't help with an alternative, but I find the Kinsten developer ok. I'm using some that I mixed up many months ago and have probably done around
10 boards with it. I just keep it in a sealed "tupperware" container and keep using it till it fails to work. At about $2 per bag I figure it's not too expensive.I buy it from Computronics in Perth.I tried using NaOH as a developer years ago without success - maybe I didn't try hard enough! r.
Thanks Rob
My developer goes in the sink as soon as I've finished using it as per the instructions so I might try keeping hold of it a bit longer. I've got no complaints with the developer - except that I've run out now, so I guess I'd better order some.
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