Metal finishing Q&As since 1989
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Ingredients in Hot Phosphating (Zinc Phosphating)
Dear Sir,
We are using combinations of Zinc Oxide, Phosphoric acid and Sodium hydroxide as Zinc phosphating in cold process. Now as per the customers demand we have to do Hot Phosphating on the parts. Please suggest weather this combination is also used in hot phosphating. we are deriving satisfactory results in cold process.
plating shop employee - Pune, India
December 6, 2010
"Phosphating of Metals"
by Werner Rausch
on
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"Preparation of Metals for painting"
by Samuel Spring
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Hi Akash,
Home-made phosphating products rarely are effective if you don't know what you are doing. Your best bet is to find a reputable supplier who has experience in the business.
You might find information in the patent literature about the composition of phosphating solutions, but that won't help you troubleshoot your line when your run into problems.
- Naperville, Illinois
Dear AKASH
I suggest to you that if you use hot Phosphating procedure this is better, because I am using hot Phosphating. Cold Phosphating has many problems.
Regards,
Lahore Pakistan
February 2, 2011
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