Patco 503R Colored Polyethylene Tape This product offers durable conformability combined with an aggressive permanent rubber based adhesive. Applications Designed as a general purpose sealing, seaming, splicing, and spiral wrapping tape. Recyclable splice tape for polyethylene films. 0n-contaminating in nuclear and other sensitive environments. 0n-contaminating in nuclear and other sensitive environments. Features & Benefits ---Excellent moisture barrier.---Chemical resistant. Controlled unwind duringapplication.-- -Provides a permanent seal indoors or outside.---Stands up to many harsh solvents and chemicals. Conforms snugly to irregular surfaces.