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"Effect of scratch width in salts spray test on painted galvanized steel"
I wonder what the influence is of the scratch width on painted galvanized steel in an accelerated corrosion test according ASTM ASTM B117 [affil. link to spec at Techstreet] . I cannot find any reference in the norm for the scratch. Does anybody have some experience with this?
Another question I have is the difference in corrosion results between painted galvanized steel (±100 %Zn) and painted galfan (±95%Zn/5%Al)Peter Piessens
- Bertem, Belgium
Hi, Peter. I have never heard of a standard scribe width myself, but I see you that you asked this question again as letter 19123 and got some interesting comments.
The proponents of Galfan® claim that improved corrosion resistance is one of its advantages. You might ask them for specific tests results. Good luck.
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey