Durable, thick-walled heat shrinkable tubes, excellently resistant to mechanical damage. They also have good resistance to solvents, acids, and bases. HA47 is internally coated with thermoplastic adhesive, which melts during tube shrinkage and provides protection against external environment and moisture ingress. Thanks to their high mechanical strength and weather resistance, tubes of this type are ideal for protecting cable joints and connectors located outdoors and underground.