Anyone here every built a spray etcher ? I'm looking at building a spray etcher on the cheap, but I cannot find a suitable pump. Pressure requirements are fairly high for sprays nozzles to work effectively. The pump must be capable of at least 10 meter head (1 bar), but all low cost fountain pumps are rated no more than 4 meters head. Getting hold of a pump is the killer. Example, the Iwaki MD-70RZ has 16 meter head but sells for AU$500. The etchant I'm using won't effect stainless steel.
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pump for spray etching
2003-09-30 by Adam Seychell