Externet Posted December 29, 2018 Posted December 29, 2018 Hi. There is several contact cleaners on the market, but none I have seen truly restores bronze/brass surfaces as factory new. What formulation could you suggest that would leave all surfaces shiny with no deposits, removing surface corrosion to bare metal ?
chenbeier Posted December 29, 2018 Posted December 29, 2018 You want to clean electronical parts like the multiswitch on the picture? https://www.electrolube.com/blog/2018/05/22/how-to-clean-electrical-contacts/
MigL Posted December 30, 2018 Posted December 30, 2018 You do know that brass is relatively soft and the act of 'wiping' across the socket ( or other ) contact removes any oxidation. It is usually dirt/grime that prevents this wiping action, and causes bad connections, Or is this for aesthetic considerations ?
John Cuthber Posted December 30, 2018 Posted December 30, 2018 I think those contacts are silver plated (and then tarnished).
Externet Posted December 30, 2018 Author Posted December 30, 2018 Thanks, gentlemen. Switches similar to that pictured one, not silver plated are intermittent and totally blackened with tarnish. Not about aesthetics. Commercial products usually work at the contact points when they are exersized while wet with the cleaner, but the rest and crevices stay corroded unless brushed which is risky to wipe/brush because of fragility of unobtanium replacements. Besides commercial cleaners, seen suggested warm ammonia, lemon juice+baking powder, salt+vinegar... Am looking for something that will avoid wiping/brushing that you may suggest. For my scuba equipment, I used diluted formic acid leaving everything super clean just by wetting a couple of minutes. Something 'magic' that will work like that would be great.
StringJunky Posted December 30, 2018 Posted December 30, 2018 (edited) On 12/30/2018 at 4:55 PM, Externet said: Thanks, gentlemen. Switches similar to that pictured one, not silver plated are intermittent and totally blackened with tarnish. Not about aesthetics. Commercial products usually work at the contact points when they are exersized while wet with the cleaner, but the rest and crevices stay corroded unless brushed which is risky to wipe/brush because of fragility of unobtanium replacements. Besides commercial cleaners, seen suggested warm ammonia, lemon juice+baking powder, salt+vinegar... Am looking for something that will avoid wiping/brushing that you may suggest. For my scuba equipment, I used diluted formic acid leaving everything super clean just by wetting a couple of minutes. Something 'magic' that will work like that would be great. Expand Try erasers on pencils cut to the optimum shape, then clean with isopropyl alcohol-soaked cotton tips to remove eraser residue off contact surfaces. Edited December 30, 2018 by StringJunky
John Cuthber Posted December 31, 2018 Posted December 31, 2018 Given that silver tarnishes + turns black and these are " On 12/30/2018 at 4:55 PM, Externet said: totally blackened with tarnish Expand and that wafer switches are commonly silvered, how sure are you that they are On 12/30/2018 at 4:55 PM, Externet said: not silver plated Expand ?
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now