The flexibility and adhesive properties of the seam tape ideal for sealing seams and repairing cracks in a variety of pond liner materials, such as HDPE, EPDM, LDPE, PVC and other synthetic rubbers. Our pond liner crafted from high quality butyl rubber material ensures superior adhesion and durability. It's designed to endure various weather conditions, offering a strong seal and dependable protection against water permeation. Double-sided seam tape is not only for liners, it is also versatile for patching , roof, skylights, and reinforcing decks. Its strong adhesive ensures a watertight seal on various surfaces and materials, making it a reliable choice for your sealing and repair needs. Please use a scrub sponge to clean the edges of the liner, make sure it is dry and free of debris. Apply the seam tape along the edge of of liner. Then, align the second piece of liner. To further strengthen the seam, please use a roller to apply pressure it. Avoid water after applying and let the liner set for a while to strengthen adhesion., Manufacturer: Ounfhtrttk