Rationale:
Adds Class C-12(48) and C-48(168) application times with corresponding requirements. Adds accelerated cure times for Class C. Removes Class A and B low temperature cure test requirements except for 1/4 and 1/2 application times. Changes the 14-day hardness requirement to 7 days. Updates Peel Strength requirements to include dry peels on AMS-C-27725 substrate. Clarify Low Temperature Curing and Low Temperature Tack-Free Time requirements. Added AMS2629 fuel exposure to the Low Temperature Flexibility test that was deleted in Rev. B. Changed a Tensile and Elongation 7-day heat exposure requirement from 300 °F (149 °C) to 285 °F (141 °C). Deleted Chalking as an Initial Acceptance Test. For Acceptance, Accelerated Storage, and Shelf-Life testing, changed aging of sealant in AMS2629 instead of AMS2629/3% salt water to be consistent with other Integral Fuel Tank Sealing Compound specifications.
Related Topics:
Adhesives and sealants
Chemicals
Titanium alloys
Aluminum alloys
Fuel tanks
Hydraulic fluids
Drying
Heat treatment
Assembling
Also known as: SAE AMS 3277
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