Browse our collection of flashing tape and primers from Trade Supplies Online. Flashing tape provides an immediate waterproof seal and is incredibly durable, ideal for use during roofing projects. Used around roof windows, chimneys or adjoining roofs, flashing tape reduces the risk of water seeping into any gaps. With a natural finish, flashing tape will blend with the roof to provide a seamless look. Use a primer to prepare and seal roof surfaces before applying the flashing tape for a professional project. Featuring trusted brands like Everbuild and Toupret, our products are all high-quality and industry-standard.