How to identify the adhesive of packing tape

for clear tapes, another way is to look at it. Rubber based adhesives are often inexpensive, so they are not always clear. If you see packaging tape where the carrier (plastic) is clear, but the tape looks like a transparent brown? Probably rubber based. If it’s clear, it is probably acrylic.for clear tapes, another way is to look at it. Rubber based adhesives are often inexpensive, so they are not always clear. If you see packaging tape where the carrier (plastic) is clear, but the tape looks like a transparent brown? Probably rubber based. If it’s clear, it is probably acrylic.