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IMPAK CORPORATION

PAKPM4S 4.0

PAKPM4S 4.0 is a transparent 4.0 mil total thickness structure with a saran (PVDC) coating on the outer polyester (Mylar®) layer that provides for dramatically higher oxygen barrier properties with almost no measurable increase in material thickness. A 3.5mil LLDPE sealant layer provides increased thickness, stability, and ease of use in heat sealing equipment. This structure is a medium grade moisture barrier and one of the highest oxygen barriers without a foil layer. This material provides good protection against corrosion and oxidation, used on delicate items requiring moderate protection against the environment.

PHYSICAL PROPERTIES (Polyester / Saran coating / Adhesive / LLDPE)

WATERVAPOR TRANSMISSION RATE (FED 101) 0.10 gms/100 sq.In./24 hrs.

O2 TRANSMISSION RATE (MOCON) 0.5/cc/100 sq.In./24 hrs. @ 73°F/0%RH

TENSILE STRENGTH (TAPPI-404, TS-66)
D-3985
12.5 lb. (5.6 kg)
0.5

TEAR STRENGTH (T-414, TS-65) MD/CD 35 gm

PUNCTURE STRENGTH (FED STD 101 METHOD 3030) 22 LBS (9.9 kg)

BURSTING STRENGTH (TAPPI T-403, TS-63) 48 lb./in²

Total Thickness (mils) 4.0 mil



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.

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