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Fuel tank sealer is just that. I can see painting it under the gear box assembly due to the high probability of a MIL-H-5606 leak, BUT you wont be soaking it in 45 gallons of 5606 for the life of the aircraft.
Fuel tank sealer is thick and heavy. On my plane I used catalyzed (two part) automotive paint in basic white. On the floor and under the gearbox I sprayed a triple coat. Sides and top got a single coat. The baggage compartment received a coating of white Zolatone (for texture) and then automotive paint on top. I sprayed a well reduced WLS primer on the composite and followed that with the topcoat as soon as the reducer flashed off. I did not want to sacrifice several sets of fingertips to sanding the primer. All this was done prior to bonding on the top. Post bonding I brushed on the seam in the cabin and sprayed the seam on the right side of the baggage compartment (the one you see).
12 years later, other than a few scratches in the baggage compartment, everything still looks great. Oil and exhaust stains clean up quickly with a little brake cleaner and a rag.
Regards
Brent Regan
N170BR Top.jpg
N170BR LF1.jpg
N170BR LF2.jpg
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