Black Jack is a strong self-adhesive flashing tape with a natural lead-look finish comprising of an aluminium foil and a bitumen rubber adhesive. The adhesive forms a strong waterproof seal by the simply pressing the tape into place by hand. Application Cut to the required length. Peel beck approximately 5cm of release carrier and place the tape into position. Continue removing the release carrier whilst firmly placing the tape to avoid unnecessary creasing. Ensure intimate contact and that no air is trapped. Using a small roller ensure that all edges and overlaps are sealed properly. Overlaps should be at least 25mm. Storage Store in original container in cool, dry conditions. Keep away from sources of ignition. Shelf Life 24 months from date of manufacture in tightly sealed, undamaged containers.