Bostik Flashband 100mm x 10m Grey is a self-adhesive bitumen flashing tape that provides an instant, watertight seal across a wide range of building materials. Designed for both new build and emergency repairs, it bonds without the need for heat or special tools. Its four-layer construction ensures durability, tear resistance, and flexibility, making it ideal for sealing valley gutters, repairing lead flashing, mending leaks in drainpipes, and more. Suitable for use in all climates, it withstands temperatures from -10°C to 100°C, making it a reliable choice for long-term protection.