Tom

What we will use a protective colour we get from Ersa. We use this colour because Ersa is one of our project sponsors, so we get the coating for free.
to be honest, I don't know the composition of the colour however trials at Ersa showed that it works well.
Another possibility is to change the solder handling parts with stainless steel that is anodically oxidised.

Best regards

Guenter

EMPA
Swiss Federal Institute for Materials Testing and Research
Centre for Reliability
Guenter Grossmann,  Senior Engineer

8600 Duebendorf
Switzerland

Phone: xx41 1 823 4279
Fax :     xx41 1823 4054
mail:     [log in to unmask]

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