F4212IN BK105 — 4:1 Heat Shrink Tubing from Alpha

Alpha F4212IN BK105 is a black 4:1 heat shrink tubing crafted from tough cross-linked polyolefin (XLPO) for reliable insulation and long-lasting protection. Featuring a nominal inner diameter of 2.0 inches and a recovered inner diameter of 0.55 inches, it operates effectively in temperatures from -55C to 135C. Over-expanded except wall thickness, this tubing meets UL VW-1, CA Prop 65, AMS DTL-23053/5 Class 1, and RoHS compliance standards. With an approximate weight of 1.06 lbs per 1,000 feet, it is ideal for large-diameter electrical insulation, environmental sealing, and mechanical protection in industrial, automotive, marine, and aerospace applications.