2. PE cling film: PE material cling film has the largest right angle tear strength.

Different moisturizing properties
The moisture retention performance of PE plastic wrap is higher than that of PVC plastic wrap.

Different oxygen barrier properties
The oxygen barrier performance of PVC plastic wrap is higher than that of PE plastic wrap.

Physical identification:
When PVC cling film is burned with fire, the flame will blacken, emit black smoke, have a pungent smell, will not drip oil, and will automatically extinguish after leaving the fire source. When the PE freshness is burned, the flame is yellow, odorless, it will drip oil, and it can continue to burn after leaving the fire source.