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Think & Tinker, Ltd.
P.O. Box 1606, Palmer Lake, CO 80133
Tel: (719) 488-9640, Fax: (866) 453-8473
Sales: Sales@thinktink.com, Support: Support@thinktink.com
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Think
&
Tinker
Ltd.
SkypeMe at
"thinkntink"
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Getting Things Ready/Recipes
Etchant recipes
| Bulk Etchant Recipes |
| Mix components in the order presented! |
| Type |
Component |
Concentration by volume |
A
i
r
a
g
i
t
a
t
e
d
|
deionized (or distilled) water |
40% |
| 35% sulfuric acid (car battery acid) |
35% |
| MFG 244 Stabilizer |
5% |
| Concentrated copper sulfate (35 oz.CuSO4/gal)* |
10% |
| 50% (wt.) hydrogen peroxide** |
10% |
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* The addition of copper sulfate to the bath is not strictly necessary
since it will form as the primary byproduct of etching copper. Be
advised, however, that the performance of the bath will be less
predictable until the copper sulfate content approaches 6 oz./gal (48
grams/liter) by analysis
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** If 50% hydrogen peroxide is not available, a 35% (wt.) or 19% (wt.)
solution can be used. Remember to scale the amount added based on the
concentration used (see hydrogen peroxide analysis).
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| Type |
Component |
Concentration by volume |
I
m
m
e
r
s
i
o
n
|
deionized (or distilled) water |
41% |
| 35% sulfuric acid (car battery acid) |
29% |
| Electrochemical, Inc. FT-2 Catalyst (stabilizer) |
10% |
| Concentrated copper sulfate (35 oz.CuSO4/gal)* |
10% |
| 50% (wt.) hydrogen peroxide** |
10% |
| Generally speaking this bath also works well for bubble assisted etchers,
"wave etchers", and some models that employ mechanical
agitation of the workpiece.
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Established 1990
On the web since 1994
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Sales: 1-(719) 488-9640 Tech Support: 1-(719) 488-9640 Fax: 1-(866) 453-8473
Copyright © 1994 - 2014 Think & Tinker, Ltd.
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