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Letter 8062
Electroless Silver Plating on Stainless
Steel
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I want to electroless silver plate the inside of small (1-2mm) 316
stainless steel tubes. What I want to know is if there is a way to
prepare the stainless steel surface without using a current.
Anna Schlunke
- Sydney, NSW, Australia
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Hi,
A blend of nitric (40%) and Hydrofluoric (10%) will descale and
activate stainless steels. A final dip in 20% HF will improve
adhesion.
Guillermo Marrufo
Monterrey, NL, Mexico
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Concerning letter# 8062, will the treatment of nitric acid and HF
make the stainless steel magnetizable? In fact I want to put this
silver plated stainless steel in a very strong magnetic field.
Kan-Nian Hu
- Cambridge, Massachusetts
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With regard to solutions of nitric and hydrofluoric acid - these
are very corrosive and damaging to human tissue. Make sure that you
wear the correct protective equipment and that you contain the acid
mixture in a suitable container recommended by the acid manufacturers
- resistant to both acids. Don't use glass. Hydrofluoric acid will
eat its way through glass
Tom Crawshaw
- Grimsby, Lincolnshire, UK
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