DeWAL tapes combine the strength, durability and versatility of the DeWAL family of high quality film products with proprietary formulations of silicone, acrylic, or rubber-based adhesive systems. DeWAL uses many substrates for our tape products some include PTFE, UHMW-PE, Polyimide, Glass Fiber Fabric, TeflonĀ® FEP, Polyester to name a few.