scope:

This specification covers the requirements and tests for three types of two-component polyether type polyurethane foam, rigid, for packaging and encapsulation of electronic components.

The polyether type polyurethane foam will be furnished in the following types, as characterized by their densities and acquisition document (see 6.2):

Type I - 2 pounds per cubic foot (lb/ft³) Type II - 2 to 3 lb/ft³ Type III - 4 lb/ft³

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, US Army Missile Command, ATTN: AMSMI-RD-SE-TD-ST, Redstone Arsenal, AL, 35898-5270 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) at the end of this document or by letter

intended Use:

The polyether type polyurethane foam is intended for potting and encapsulating electronic components to protect them from thermal and mechanical shock.