Universal Liner Compatibility: Designed to bond with EPDM rubber, HDPE, LLDPE, RPE, LDPE, and PVC liners — ideal for sealing or joining pond liners in both small backyard ponds and large water features. Fish Safe and Pond Ready: Formulated without harmful chemicals, our tape is completely safe for fish and aquatic plants, making it the perfect choice for maintaining a healthy pond environment. Leak-Proof Performance: Engineered to form instant, watertight seams. Compatible with all pond liners and ideal for koi ponds, waterfalls, water gardens, and more — for lasting protection and peace of mind. Heavy Duty Butyl Adhesive: ISO 9001 certified and double-sided, our commercial grade butyl tape creates a reliable, weatherproof bond that holds strong even in extreme outdoor conditions — seam it once, enjoy it for years. What's Included: 30 feet of 6 inch wide self-adhesive black butyl tape — everything you need for professional-grade repairs or installs. If you need any assistance, we’re here to help. Ponds are the ultimate element in landscaping. Regardless of size, all ponds require a high quality foundation to provide an impermeable layer to prevent leaking. Large ponds more often than not require multiple liners to be seamed together. The REKVEN pond liner seam tape kit is the essential accessory in delivering the finest seam sealing for overlapping pond liners. Our commercial grade pond liner tape is made of non-toxic, fish safe, strong double sided butyl adhesive to create an impenetrable seam making it the ideal solution for all home and commercial pond construction projects, including maintenance or repairs.