Letter 3079

Porcelain enamel surface prep 

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I'm looking for information on how to prepare steel for porcelain enameling. All I can find mention of is that a "pickling" solution is used. If someone can identify the specific acid used and a source for it, I'd appreciate it. If you know of a reference book on this process, I'd appreciate being told the title & publisher, etc., too.

Elizabeth O'Connor
glass works - Spartanburg, SC

A pickle for steel could be as simple as 10% muriatic acid, but I don't know for sure about enameling. Here is a book at amazon.com, of which finishing.com, inc. is an associate: (This book got a good review over at amazon, and it is around 8 bucks). Metalwork and Enameling by Herbert Maryon, Paperback - 335 pages 5th edition (January 1984)

good luck, tom

Tom Pullizzi platronica.com Falls Township, PA

 

I AM HAVING PROBLEMS OF COPPERHEADING IN THE GROUND COAT OF PORCELAIN VITREOUS ENAMELING OF STEEL PRODUCTS.i SHALL BE GRATEFUL IF ANYONE COULD PLEASE ADVISE ME ON WHY THEY OCCUR AND HOW TO GET RID OF THEM.ANY REFERENCE TO ANY TROUBLESHOOTING BOOKS WOULD ALSO BE WELCOME.

THANKS

BAKHSHI

TEJBIR BAKHSHI
KOTA,RAJASTHAN,INDIA

A good clean part is all that's required for enameling. A customer in Florence uses a six stage spray wash for cleaning the parts, with a simple alkaline cleaner. They get good results as long as they keep the concentration up and pay attention to the process. Cleanliness is absolutely critical to enameling, so don't skimp on it. But no other treatment is needed.

Jeff Watson - Pearland, TX

WE are interested to know corrosion & wear resistance characteristic of PORCELAIN ENAMEL coatings. We are interested to start ENAMELING work at BARODA. WE need know the application method for the same. Can you help us ?

ASHOK SAHASRABUDHE
THERMAL SPRAY job SHOP - BARODA,, GUJRAT , INDIA

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