Description
You’ve just discovered a slow seep around a fuel tank rivet or seam during preflight—the kind of weep that grounded more than one pilot before heading to the runway. PPG PR-1826 Integral Tank Sealant is formulated for exactly this situation: sealing and protecting aircraft fuel tank interiors where fuel and moisture are constant threats. This sealant is designed to adhere to aluminum and composite tank surfaces and maintain flexibility during thermal cycling, so it won’t crack or separate as your tank experiences the temperature swings of climb and descent.
Typical applications include riveted seams, fastener holes, and stress areas in integral fuel tanks on general-aviation aircraft. Because fuel tank work involves strict safety protocols and often requires specialized surface prep and application procedures, carefully review the product instructions and any relevant maintenance manual guidance before use. If you’re uncertain about tank repair scope or sealant compatibility with your specific airframe, consult your aircraft’s maintenance documentation or a qualified technician.
