I was searching the forums and wanted to bring this thread back up to check something out. I am ready to order the tubing for my impulse sealer - but am a bit confused. I have read Polypropelyne is the way to go, but all the shrink wrap I find is made from PVC....is this acceptable also? Edited to add: On further searching, I found out that people DO use the PVC with good results. I need to search a little longer before posting next time...sorry. My intention is to fill the 18-pk cardboard votive boxes, then shrink-wrap them until we are ready to go to the shows. Just one more teeny-tiny question (I HATE to be a PIA, but I have not seen this particular question addressed before)....will the candles be ok shrink wrapped in a cardboard box? LOL Thanks again all.....I am REALLY hoping to be able to contribute SOMETHING soon.......Jane