Is "durable" the same as "rigid" or "inflexible"?

What's the *hardest*, most *rigid* plastic I can use for my widget?  Is "durable" the same as "rigid" or inflexible?  I'm making a leather mold, and it will have to hold its shape under some pressure.  Most likely, this is something I will want to be made with 3D printing.


Please sign in to leave a comment.