Anyone off chance know how much heat a cel can 
take before it will turn into a shrinky dink.  I 
am looking to get a safe and I figured I would 
put the cels in there too.  The safes 
descriptions read:

This means that the safe's interior temperature 
will remain below 350° F (well below the char 
point of paper) upon exposure to temperatures 
reaching 1700° F for one hour or 2000° F for four 
hours. 

So 350 doesn't char paper but is that enough to 
melt/deform a cel?

thanks.