Firestone QuickSeam FormFlash is an uncured EPDM flashing laminated to cured seam tape. QuickSeam FormFlash is used to flash inside and outside corners, pipes, penetration pockets and other applications. QuickSeam FormFlash Method of Application Use QuickPrime Plus and a QuickScrubber or QuickScrubber Plus pad and handle to clean and prime mating surfaces. When cloudy conditions below 60 degrees F occur, use heat guns (without ignition sources) to heat QuickSeam FormFlash. This will ensure good formability of the QuickSeam FormFlash to the primed substrate.On sunny days less than 70 degrees F lay out QuickSeam FormFlash (prior to application) with flashing side up to allow QuickSeam FormFlash to warm to ensure good formabilityOn sunny days greater than 70 degrees F, lay out QuickSeam FormFlash (prior to application) with release paper up to prevent QuickSeam FormFlash from gaining too much heat and ensure food formability.