Black Jack Flashing Trade, 10m Everbuild Black Jack Flashing Tape Flash is a strong self-adhesive flashing tape comprising of an aluminium foil and a bitumen rubber adhesive to form a strong waterproof seal. 10m Trade rolls in 75mm, 100mm, 150mm, 225mm, 300mm or 450mm • Replaces need for lead flashing • Self-adhesive – requires no separate glue • Suitable for most flashing applications • Suitable for general repair to existing flashing • Suitable for repairing lead gutters, cracks in concrete and replacing lost lead flashing