3M's heat shrink thin-wall flexible polyolefin adhesive-lined tubing EPS300-1/2-48 in clear. EPS-300 heat shrink tubing is a dual-wall tubing provides the advantage of an integral, adhesive-lined construction. This flame-retardant tubing with a 3:1 shrink ratio offers insulation for 600 V-rated applications. The flexible polyolefin construction features an internal layer of thermoplastic adhesive, which offers moisture-seal protection in automotive and marine applications.