This lamination of film foil and polyethylene has a wide range of uses where a high barrier film is needed with a low WVTR (Water Vapor Transmission Rate).

PAKVF4’s high barrier properties make it ideal for packaging hygroscopic items and products susceptible to corrosion. It is frequently used in packaging food or medical device packaging, where very low oxygen levels are required.

NOTE: PAKVF4 is 4.3 mils thick and offers the appropriate barrier for food products. In some unique applications where an even stronger barrier is needed, we offer 5 mil thick PAKVF4C structure is 5.0 mils minimum also with an FDA approved sealant layer.

PHYSICAL PROPERTIES (48Ga PET/ PE / .00035" FOIL / LLDPE)

Total Thickness (mils) 4.3 mil
WATER VAPOR TRANSMISSION RATE (ASTM F-1249) < 0.0005 gr./100in 2 24 hrs.
O2 TRANSMISSION RATE (MOCON) 0.001/cc/m2 /24 hrs.
TENSILE STRENGTH (INSTRON TAPPI T404) 25  PSI
BREAKING STRENGTH (GRAB - FED 191) 70 lb.
PUNCTURE STRENGTH (FTMS 101-C; 2065.1) >18 PSI
MULLEN BURSTING STRENGTH (TAPPI T403) 69 PSI
RECOMMENDED HEAT SEAL CONDITIONS 400 °F/40 PSI/1 sec.
Foil Thickness .00035" MINIMUM



IMPAK CORPORATION makes no warranty, expressed or implied, as to the suitability of these materials for any specific use. The values shown above were developed from random samples taken from production material. We believe them to be typical for the product. Actual values may vary somewhat from those depicted here. Customers should determine product suitability based upon their own internal criteria.