Evo-Stik Flashband is a self-adhesive flashing tape that provides an instant, watertight seal for a variety of surfaces. The tape is made of a flexible bitumen sealing strip with four layers of protection, including a lacquer coating, heavy-duty aluminum foil, a tear-resistant polyester membrane, and a polymer-enhanced bitumen adhesive. It is designed to be durable and long-lasting, providing protection for at least 15 years.