This specification covers two-part adhesives for bonding aluminum alloy facing to foam core, inserts, edge attachments, and other components of a Type II foam cored sandwich panels. The adhesive should be suitable for forming bonds that can withstand long-term exposure at specified temperatures, and different combinations of stress, temperature, and humidity expected to be encountered in service. The adhesive may be used for new production or depot maintenance. The adhesive shall be a two-part thermosetting epoxy paste containing no asbestos and, when tested, shall meet the following physical and mechanical property requirements: curing time, temperature, and pressure; mix ratio; storage life; adhesive life; room-, low-, and high-temperature shear; hot humidity exposure shear; and room-temperature salt spray exposure shear.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Significance and Use
This specification is intended to provide information on the properties of adhesives, and the test methods required to evaluate adhesives to be used in the production bonding of aluminum alloys to foam core materials for the manufacture of tactical shelters.
1.1 This specification covers two-part adhesives for bonding foam core sandwich panels. The adhesive may be used for new production or depot maintenance. The adhesive should be suitable for forming bonds that can withstand long-term exposure to temperatures from −55 to 93°C (−67 to 200°F) and also withstand combinations of stress, temperature, and humidity expected to be encountered in service. The adhesives shall be used for bonding aluminum alloy facing to foam core, inserts, internal aluminum framing members, and other components of a foam cored sandwich panel.
1.2 The values stated in SI units are to be regarded as the standard where only SI units are given or where SI units are given first followed by inch-pound units; where inch-pound units are given first followed by SI units, the inch-pound units are to be regarded as the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
D1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal)
E864 Practice for Surface Preparation of Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
E1749 Terminology Relating to Rigid Wall Relocatable Shelters
MIL-STD-202F Test Methods for Electronic and Electrical Component Parts
QQ-A-250/11d Aluminum Alloy 6061 T6 Plate and Sheet
adhesive; elevated humidity; foam and beam; Adhesive bonds--specifications; Adhesives--specifications; Building materials/applications--specifications; Elevated humidty testing; Foam and beam panels--specifications; Sandwich panels;
ICS Number Code 83.180 (Adhesives)
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Citing ASTM Standards
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