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AMSC N/A FSC 8040
DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.
DETAIL SPECIFICATION
ADHESIVES, FIRE-RESISTANT – FOR THERMAL INSULATION
This specification is approved for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
1.1 Scope. This specification covers fire-resistant adhesives for securing cloth and tape to thermal insulations
and for securing thermal insulations to metal surfaces.
1.2 Classification. The adhesives are of the following classes and grades, as specified (see 6.2).
1.2.1 Classes. Classes of adhesives are as follows:
a. Class 1 – For bonding fibrous glass cloth to unfaced fibrous glass insulation, sealing the edges of and
bonding fibrous glass tape to the joints of fibrous glass board, and bonding lagging cloth to thermal insulation.
b. Class 2 – For attaching fibrous glass insulation to metal surfaces.
c. Class 3 – For attaching cork and fibrous glass insulation board to metal surfaces.
1.2.2 Grades. Grades of adhesives are as follows:
a. Grade A – Pigmented white.
b. Grade B – Pigmented red (sealer coating to identify asbestos-free system).
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This
section does not include documents cited in other sections of this specification or recommended for additional
information or as examples. While every effort has been made to ensure the completeness of this list, document
users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this
specification, whether or not they are listed.
2.2 Government documents.
2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a
part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are
those cited in the solicitation or contract.
DEPARTMENT OF DEFENSE SPECIFICATIONS
MIL-C-20079 - Cloth, Glass; Tape, Textile Glass; and Thread, Glass and Wire-Reinforced
Glass
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