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This specification covers structural film adhesives used for bonding honeycomb sandwich panels consisting of an aluminum alloy bonded to a nonmetallic core, edge attachments, and other components, and for new production or depot repair. The adhesive shall be manufactured in film form from a thermosetting compound suitable for forming bonds that can withstand long exposures to a range of temperatures and combinations of stress, temperature, and relative humidity encountered during service. The adhesive may be pure or consist of a carrier impregnated with adhesive and shall be uniform in appearance, with a weight in the range specified. Tests for shear, peel, durability, tensile strength, and storage life shall be performed and shall conform to the requirements specified.
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.
1.1 This specification covers film adhesives for bonding of honeycomb sandwich panels. The adhesives are used for new production or depot repair. The adhesives shall be suitable for forming bonds that can withstand long exposures to temperatures from −55 to 93°C (−67 to 200°F) and also withstand the combinations of stress, temperature, and relative humidity expected to be encountered in service. The adhesives shall be used for bonding aluminum alloy facing to nonmetallic core, edge attachments, and other components of a 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 regarded as the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B117 Practice for Operating Salt Spray (Fog) Apparatus
B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate
C297/C297M Test Method for Flatwise Tensile Strength of Sandwich Constructions
D1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal)
D1781 Test Method for Climbing Drum Peel for Adhesives
D2919 Test Method for Determining Durability of Adhesive Joints Stressed in Shear by Tension Loading
D3167 Test Method for Floating Roller Peel Resistance of Adhesives
E631 Terminology of Building Constructions
E864 Practice for Surface Preparation of Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
E866 Specification for Corrosion-Inhibiting Adhesive Primer for Aluminum Alloys to Be Adhesively Bonded in Honeycomb Shelter Panels
E874 Practice for Adhesive Bonding of Aluminum Facings to Nonmetallic Honeycomb Core for Shelter Panels
E1091 Specification for Nonmetallic Honeycomb Core for Use in Shelter Panels
E1749 Terminology Relating to Rigid Wall Relocatable Shelters
E1826 Specification for Low Volatile Organic Compound (VOC) Corrosion-Inhibiting Adhesive Primer for Aluminum Alloys to Be Adhesively Bonded
Federal SpecificationsQQ-A-250/11d Aluminum Alloy 6061T6, Plate and Sheet
ICS Number Code 83.180 (Adhesives)
UNSPSC Code 30103500(Honeycomb core); 31200000(Adhesives and sealants)