I have bought 30 rolls of tape from easy composites,any one who is thinking don’t bother tape to thin,and does not hold vaccum.
What kind of tape is it and can you post pics? All the tape I’ve seen in the states is from Airtech. I have seen one other brand of tape but only because another student team got a large donation from some company that went under.
Forget Easy Composites mate.
Send the tape back and call Tygavac 
If you like soft tape, the Airseal 2 from Airtech / Tygavac is a good choice. (lower temp range). Otherwise Airseal 1 will do. For higher temps, you fall back on AT200Y, GS213, etc.
Well what kind of work are you using the tape for? If they make it, it must be good for some kind of composites work.
Crap stuff I’ve tried on basic flt panel,does not hold any vaccum it’s like a snake hissing non stop.
Picturesof anything?