PAKPM4

IMPAK CORPORATION

PAKPM 4

This material provides good protection against corrosion and oxidation, used on items requiring moderate protection against the environment, the outer layer of polyester (Mylar) provides the structure with oxygen barrier properties 10x that of a polyethylene bag twice as thick. However, both the oxygen and moisture barrier properties are considerably less than any foil laminate structure. (See PAKVF4)

CONSTRUCTION: 48ga Polyester/Adhesive/LDPE

PHYSICAL PROPERTIES

Total Thickness (mils)	3.0 mil
WATERVAPOR TRANSMISSION RATE (ASTM F-1249)	0.5 gr./100in² 24 hrs
O2 TRANSMISSION RATE (ASTM 0-3985))	0.6/cc/100in²/24 hrs.
TENSILE STRENGTH (TAPPI T-404, TS-66)	12.5 lb./in. (5.6kg)
TEAR STRENGTH (T-414, TS-65) MS/CD	35gm.
PUNCTURE STRENGTH (FED STD 101 METHOD 3030)	22 LB. (9.9kg)
BURSTING STRENGTH (TAPPI T-403, TS-63)	48lb./in²

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.