49905

Manganese phosphate coating  

September 5, 2008

We would like to know for the manganese phosphate coating activity, we have the some material ei. sus 304, sus 316 & sus 420. ( this is the small quantity ) and we need to do the maganese phosphaoe coating ( after finish job is black colour )

Can you please or :

1) For these stainless steel material can do it this coating ?
2) If can, can you please axplane us the step by step for this job.
what can we do, what is the chemical suppose to mix, how to boil and etc.


Thanks
Zamri

ZAMRI ISMAIL ZAMRI ISMAIL
- KUANTAN, PAHANG, MALAYSIA

Manganese Phosphate coatings will NOT form on ANY stainless alloy.

Robert H Probert Robert H Probert Technical Services Garner, NC, USA Editor's note:        Mr. Probert is the    author of Aluminum How-To

Phosphate on any SS is a bit unusual. You need to talk to top quality vendors about their products that will do the job. Home brew is not a good idea until you have experience with quality products. If you consider the cost of reworks, and no tech service, I would personally stay with a proprietary product.

James Watts
- Navarre, Florida