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MIL-PRF-131K Type I Class I

Structure: OPP/PE/Foil/PE
PROTECT 470 (Marvelseal 470) meets all of the requirements of MIL-PRF-131K, Class 1. Marvelseal 470 is heat sealable and can be used for applications requiring superior tear and puncture resistance as well as protection form light, air and moisture vapor. As an added benefit, Protect conforms to FDA Regulations PART 177-1520 CFR21 for direct food contact when used as supplied and in accordance with sound manufacturing practices.
Unit of Measure

Specifications

Brands

 N/A MS 470

Mil Spec

 N/A Mil-PRF-131 Class 1

Nominal Caliper

 N/A 0.0056 in

Test Method (Caliper)

 N/A TAPPI T411

Nominal Water Vapor Transmission Rate (WVTR)

 N/A <0.0005 g/100 in²/24hrs

Maximum Water Vapor Transmission Rate (WVTR)

 N/A <0.02 g/100 in²/24hrs

Test Method Water Vapor Transmission Rate (WVTR)

 N/A MIL-STD 2017-3030

Test Method (Tensile Strength)

 N/A TAPPI T411

Nominal Tensile Machine Direction (MD)

 N/A 29 lb/in

Nominal Tensile Cross Machine Direction (CD)

 N/A 26 lb/in

Nominal Puncture Resistance

 N/A 18 lb

Maximum Puncture Resistance

 N/A >15 lb

Test Method (Puncture Resistance)

 N/A MIL-STD 2065

Nominal Oil Resistance

 N/A Passed

Maximum Oil Resistance

 N/A No delamination, swelling, or leakage

Test Method (Oil Resistance)

 N/A MIL-STD 3015

Nominal Breaking Strength

 N/A 68.8 lb/in

Maximum Breaking Strength

 N/A <50 lb/in

Test Method (Breaking Strength)

 N/A 4.6.5

Standard Sized

 N/A 36" x 1000ly 48" x 1000ly