PR-1199 - Secondary Fuel Barrier Coating
PPG PR-1199 is a sprayable polyurethane coating used as a secondary fuel barrier on composite integral fuel tanks. Applied to the exterior of the primed composite center wing box tank, it helps contain leaks if the primary seal fails. It cures at room temperature to form a resilient transparent coating with high elongation and tensile strength allowing easy detection of cracks during inspections.
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PR-1199 is a sprayable, polyurethane coating designed
for use as a secondary fuel barrier on composite
aircraft integral fuel tanks. The product is typically
applied to the exterior surfaces of the composite center
wing box tank which has been primed with DeSoto
primer 512X310 qualified to BMS10-103. Should a
leak occur in the tanks primary seal system, PR-1199
will aid in containment of the leak and prevent fuel
migration.
PR-1199 cures at room temperature to form a resilient
transparent coating with high elongation and tensile
strength properties. It gives the advantage of a very
fast ambient cure profile for short cycle times and
short tack free times. The spray applied product
is clear after cure, making for easy detection of
cracks/issues with the primed composite tank during
inspections or as needed.