I ordered a few cels from art-toons (great seller 
btw) and am going to frame them.  I ordered a 
frame and mats and everything from that 
americanframe website, but I am wondering exactly 
what type of tape to use to hold the cels to the 
mat.

I know it should be acid free, but almost every 
place that sells the stuff sells double sided 
acid free tape, would that damage the cel in 
anyway in the long run? Or should I try to find 
regular scotch tape that is acid free.

I'll include the cels I bought, I think they're 
pretty nice.