Washing out your SR2000 is a critical stage of the processing. Potentially
good resists can be ruined here so getting the process right is a
pre-requisite in making effective reliable masks. SR2000 will give
you no blow outs and perfect etching everytime if you play by the
rules. Short cuts sometimes get things done quicker but as any real
quality craftsperson knows....The only way to do something right is
the right way. Here are some highlighted tips for getting the best
results from the washout process.
* Use shower temperature water. This temperature water will give
you the fastest quality results. DO NOT USE Hot water. Above shower
temperature water is too hot for the resist and slight melting may
occur, rounding off sharp edges and making the resist susceptible
to blow outs. Cold water can safely be used but it takes a little
longer.
* Use ProBlast’s wash out hose. Everyone that by-passes this
product has trouble in the washout process. Just buy the ProBlast
trigger Jet Wash Out Hose. It’s the one that Rayzist recommends.
* Use the Krystal Kote Black art spray on your artwork vellum to
blacken the art up. By doing this you are reducing the amount of
light that gets through the black of the artwork rendering the artwork
area less exposed. This in turn makes the washing out process much
faster.
* Have a white board as your backing board so that you can see
clearly what is washed out and what is not. ProBlast sell a magnetic
clip washout board that works well.
* Move around the resist with the water flow so as not to stay
too long in the one area which may cause saturation of the resist
thus weakening it.
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