SAE AMS-A-25463

Description / Abstract: Adhesives conforming to this specification are intended for bonding sandwich constructions of metal facings to metal core for use in structural airframe parts. Included in this is the bonding of the metal facings to metal components within the sandwich panels which must be cured under the same conditions as the sandwich panel. Fabrication and inspection will be in accordance with the requirements of MIL-A-83377. Parts or assemblies requiring the use of adhesives covered by this specification should be designed with consideration for the heat and pressure required during the bonding operations. The maximum curing pressures specified in 3.3.2.2 are necessary requirements for determining the suitability of an adhesive for general production use. However, shop facilities permitting higher pressure in accordance with the manufacturer's instructions should be used wherever practicable.

Any adhesive covered by this specification can be used for sandwich constructions other than metal to metal, provided the use of the adhesive is substantiated by the tests specified herein using the combination of the materials in question. For example, an adhesive covered by this specification can be used for bonding metal core to plastic facings, plastic core to plastic facings, and plastic inserts and edge members to plastic or metal facings when that adhesive has successfully passed testing using the specific material.