1″ 2:1 Heat Shrink Tubing | Black | 100′ Spool | HST1BK100

Engineered from cross-linked polyolefin, this 1-inch heat shrink tubing delivers professional-grade insulation and mechanical protection with a 2:1 shrink ratio that reduces diameter to 0.5 inches. The 100-foot spool features flame-retardant construction meeting UL 224 standards, UV and chemical resistance for demanding environments, and maintains operational integrity across -55C to +125C. Rated for 600V applications with RoHS and CSA certification, it provides a clean, uniform finish ideal for cable bundling, splice protection, and connector insulation in industrial, automotive, and electrical installations.