MIL-PRF-26514 TYPE 1, CLASS 2, GRADE C POLYURETHANE FOAM PLANK MATERIAL
This specification covers prefoamed polyurethane foams, both rigid and flexible, for packaging and applications.
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MIL-PRF-26514
PERFORMANCE SPECIFICATION POLYURETHANE FOAM RIGID OR FLEXIABLE
The polyurethane foams shall be furnished in the following classes, categories, and grades. Additional characteristics shall be specified by the procuring activity.
Standard Foam
Class 1 – Rigid
Class 2 – Flexible
Anti-Static Foam
Class 1 – Rigid
Class 2 – Flexible
The materials used in the production of polyurethane foams shall provide a product conforming to the requirements specified herein. Procurement of materials that contain chlorofluorocarbons (CFCS) ! or utilize or liberate CFCS during their production, is prohibited. The polyurethane foam shall be supplied in rolls, sheets, or molded shapes, as specified.

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