Medium wall heat shrink tube with adhesive (also known as cable outer sheath sleeve) is widely used for sealing, waterproofing and protection of power cables and optical fiber cables. It comes with three mainstream adhesive coating technologies: co-extruded type, direct coating type, and spiral glue coating type.

Although the glue application methods are different, they deliver the same core performance. Once fully shrunk under heat, the inner hot melt adhesive melts and fills the gaps, forming a continuous waterproof seal on the substrate surface. It effectively blocks moisture, dust and contaminants to protect cables or optical cables against corrosion and environmental damage.

Beyond cable and fiber optic cable projects, this adhesive-lined medium wall heat shrink sleeve has versatile applications on many other products. For example, it works well for plastic pipes, bearings and other components that require waterproof and wear-resistant outer protection.

Compared with thin-wall heat shrink tubing, medium wall adhesive heat shrink tube features a thicker wall thickness and higher hardness. These physical properties grant it outstanding abrasion resistance and mechanical protection. It can withstand friction, minor impact and external squeezing during installation and long-term service.

This medium wall heat shrinkable sleeve is commonly adopted in underground cable joints, pipeline renovation, equipment component encapsulation and other outdoor & buried working scenarios. It creates reliable long-term insulation, sealing and mechanical shielding for your assets.