what is better ? spray a thin or thick layer of the Positiv 20 on the copper board ? what can i do to prevent the developed part from desolving in the developing fuid ?
Message
Using the Positiv 20
2002-09-13 by Salam
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Message
2002-09-13 by Salam
what is better ? spray a thin or thick layer of the Positiv 20 on the copper board ? what can i do to prevent the developed part from desolving in the developing fuid ?