Synthetic rubber sealants encompass polysulfide- and nitrile-based (Buna-N) compounds applied as gap-filling, faying-surface, and edge sealants in airframe assembly, offering resistance to hydraulic fluids, fuels, and environmental ingress; application methods include extrusion, brushing, and injection, with products qualified to MIL-S and NAS specifications.
Who really supplies this sector?
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