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Dry phosphate coating

2005

Hello, everyone,
Does any body know how to do dry phosphate coating? we need to apply this type of coating on our steel product surface.
We appreciate any help from you.
Thanks, Julie Liu

Julie Liu
- China

"Phosphating & Metal Pretreatment"
by D.B. Freeman
phos_freeman1991
on AbeBooks

or eBay or

Amazon

(affil links)

I'm not quite sure what you mean by a 'dry' phosphate coating, Julie. Do you mean a "dry in place" phosphate coating that doesn't require rinsing? David McCormick discusses this technology in letter 10893.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005

Dear Gentleman,

You can apply organic phosphate coating, which is completely free from water rinse. this is single stage process.

Navin Maheshwari
- New Delhi, India
2005

Q. I have come across a requirement of DRY PHOSPHATE coating on steel surface.

I an told that the steel component is to be dipped in sodium phosphate solution for a period, depending on the phosphate thickness desired, generally 10 to 15 microns.

If it is to be dipped in solution, why is it termed Dry Phosphating?

Kindly respond, what is Dry Phosphate coating?

How to you do it?

RAJAN PUNCH
Freelance Engineer - Mumbai, India
August 20, 2011

A. It is probable that the term dry refers to the post plating condition not the phosphate process. Phosphate coatings are often oiled to improve corrosion resistance and to reduce friction.

Martin Rittau
- Ancaster, Ontario, Canada
April 18, 2012

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