The F1051/2-BK008 is a heat shrinkable tubing constructed from black, irradiated Polyvinyl Chloride (PVC). It features a 2:1 shrink ratio, reducing from a minimum supplied internal diameter of 0.500 inches to a maximum recovered ID of 0.250 inches, with a nominal recovered wall thickness of 0.030 inches. This tubing operates across a temperature range of -20°C to 105°C and requires a minimum shrink temperature of 100°C for full recovery. Meeting UL, CSA, and AMS-DTL-23053/2 Class 1 specifications, it is ideal for various commercial and military applications requiring durable insulation, strain relief, and wire bundling.