http://www.pressurex.com/home.php



Pressurex® is a unique, affordable and easy to use tool that reveals the distribution and magnitude of pressure between any two contacting, mating or impacting surfaces. pressure indicating sensor film is extremely thin (4 to 8 mils) which enables it to conform to curved surfaces. It is ideal for invasive intolerant environments and tight spaces not accessible to conventional electronic transducers.

Dave

That's pretty cool stuff. I can think of at least a few situations where it would be useful for revealing warpage between mating surfaces.

That stuffs pretty neat...kind of a high tech version of the old plastigauge crap...but actually useful. I don't know that I would trust the pressure ratings chart completely, but it would definitely be useful for showing differences as mentioned.