Non-motoring > Nickel plated or zinc plated? Miscellaneous
Thread Author: L'escargot Replies: 5
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New Tue 11 Jun 13 15:03 
 Nickel plated or zinc plated? - L'escargot
I've got the choice of two sorts of screw cups ~ nickel plated and zinc plated. Which is likely to be the most corrosion resistant when used outdoors in conjunction with zinc plated screws?
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New Tue 11 Jun 13 15:05 
 Nickel plated or zinc plated? - Manatee
zinc = no 'potential' for electrolytic corrosion?
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New Tue 11 Jun 13 16:27 
 Nickel plated or zinc plated? - Dave
Zinc plating, if done properly on good quality metal, is pretty corrosion resistant. But it seldom is, so usually lasts a week or two outside. Nickel plating should be pretty good, but again is usually rubbish. Best solution is stainless steel.
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New Tue 11 Jun 13 18:00 
 Nickel plated or zinc plated? - Cliff Pope
Don't confuse zinc plating with proper galvanising. Galvanising is immersing the object in a bath of molten zinc, and it lasts for decades. Zinc plating is a pathetic pseudo-sustitute which lasts a few weeks.
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New Tue 11 Jun 13 20:02 
 Nickel plated or zinc plated? - NortonES2
Galvanising, especially lamposts is quite an entertainment, if you don't have to do it all week. From the pickling lines (acid and passivator) via a drainage area, the lampost (6-7 m) is gently lowered into a simmering stew of molten zinc. The crane operator lurks in a small hut, viewing the process thorough a stout transparent panel. As the moisture retained, inevitably, in certain lamposts is converted to steam, a slug of boiling zinc flies out of the upper end of the lampost. Best not to be around the business end!
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New Tue 11 Jun 13 20:53 
 Nickel plated or zinc plated? - Fullchat
Depending on the job have you thought of brass screws? I have used them for hanging basket brackets. No rust and rusty streaks down the walls.
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