Quote Originally Posted by PapaBull
I know some of the razors I've seen in this kind of condition were probably made in the 40's. I don't think there's an absolute life expectancy for this stuff. I'm guessing but I think razors that are enclosed and subject to high heat (like in an attick) and worse, direct sunlight or UV exposure simply start breaking down and once the process starts it's irreversible as far as I know.

For those that don't know, celluloid is properly called "cellulose nitrate". ABOUT CELLULOID

It's chemical composition isn't far removed from gunpowder and it's extremely volatile stuff. It can go up in flames with just a spark or any agressive grinding, such as on a belt sander. Trying to melt it with a match or lighter will result in it immediately bursting into searing flames and generating quite acrid smoke. It is, however, a good product with characteristics that make it ideal for razor handles and is still being used today for a number of applications, including handles for both knives and razors.
Wow...that is really interesting...I would have NEVER guessed that.


how does one shape, grind, and sand celluloid without destroying it then? Or is it simply poured and molded?