Description / Abstract:
This Aerospace Recommended Practice (ARP) describes the
processing system and techniques for the surface preparation and
priming of aluminum alloy parts for structural adhesive bonding to
achieve optimum bondline durability, corrosion resistance, and
manufacturing producibility.
While this surface preparation has been developed and validated
for two high strength aluminum alloys, 2024 and 7075, in the
hardened condition it is expected to be applicable to other alloys
and tempers.
This surface preparation system has been validated for use with
180°F (82°C) and with 250°F (121°C) curing elastomer-modified epoxy
adhesiveand corrosion-inhibiting primer.
The processes described herein are the result of laboratory
evaluation of structural and durability performance.
Safety - Hazardous Materials:
While the materials, methods, applications, and processes
described or referenced in this specification may involve the use
of hazardous materials, this specification does not address the
hazards which may be involved in such use. It is the sole
responsibility of the user to ensure familiarity with the safe and
proper use of any hazardous materials and to take necessary
precautionary measures to ensure the health and safety of all
personnel involved.