Another french gray product by John B.

John B.

~ Elite 1000 Member ~
Nov 9, 2006
Los Angeles area, California.
FYI, thought I would share this with you.
I recently found another source of a fine French Gray dip material.
It is Phosphoric acid based material, rather like a mild, cold acting Parkerize material.
It will give reasonable rust resistance and show engraving of to good advantage but needs a sealing dip to do this.
I think you can see my sealing process in the Tips department if you care to try it.

"Du Pont Heavy Duty Acidic Tile Floor Cleaner."
Cheap and easy to find at Lowe's in the tile department, about $10.00 for a quart. Can be used over and over for steel parts.

This is a lot easier to find than the automobile body prep material that I previously used.

WARNING. As usual, care should be excercized in the use of any chemical product but I do not find this to be very hazardous if used with due caution, eye protection and gloves etc. Best to use a Pyrex or ceramic container, not metal to hold the liquid while dipping parts.
Store the material in it's original labeled container.

Latest posts