[TheForge] File Making

[Larry Brown]

I agree with Dave, I think it is something to help prevent de carburization 
unless it is some traditional homemade Kasenite. I don't think I can judge 
the colors from the video with real accuracy, but I would think it protects 
the file during the last part of the heating
Larry Brown

>  It seem much more likely to me that the function is to protect the 
> teeth, prevent decarburization and as noted give a good measure of 
> critical temperature.
>
>Dave Smucker
>Brasstown, NC