All Questions
2
questions
-1
votes
1
answer
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Should I be concerned about a galvanic reaction between silver solder and stainless steel?
I would like to solder a drain fitting onto my ultrasonic cleaner's tank. The fitting and the tank are both stainless steel. During its operation, the tank is filled with a cleaning solution and heat ...
- 874
4
votes
0
answers
154
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Why do old black and white photos fade?
I understand why photos based on organic dyes would fade (discussed previously). But photos based on metallic silver fade as well such as like the one shown below. As a metal (a fairly stable one at ...
- 12.6k