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SAE AMS3570 Revision F, November 1, 2011
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Active, Most Current
Foam, Flexible Polyurethane Open Cell, Medium Flexibility
Includes all amendments and changes through Stabilization Notice (No longer revised / updated) , November 2011
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AIA/NAS Aerospace Standards

This specification covers two types of an open-cell, medium-flexibility polyurethane foam in the form of sheet, strip, and shapes.


These products have been used typically for general interior padding, cushioning, and vibration insulation, but usage is not limited to such applications.


Foam furnished to this specification shall be classified as follows:

Type 1 - Polyurethane Foam - Ester

Type 2 - Polyurethane Foam - Ether

Type 2 shall be supplied unless Type 1 is ordered.

Safety - Hazardous Materials:

While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.