Heat Shrink Tubing

The shrinkable sleeve series is designed for the anti-corrosion and thermal insulation of buried and overhead steel pipeline weld joints, as well as for thermal insulation jointing. It can also be used for sealing and anti-corrosion at pipeline flange connections and lock band areas.

It is composed of radiation-crosslinked polyolefin base material and sealed thermoplastic adhesive composite. The sealed thermoplastic adhesive can form a good bond with polyethylene base material, steel pipe surfaces, and solid epoxy coatings.

During the heating installation, the heat shrinkable sleeve shrinks radially while the internal adhesive layer melts, tightly wrapping around the joint and forming a robust protective barrier on the exterior of the pipe with the base material. It boasts excellent wear resistance, corrosion resistance, impact resistance, and good UV and photo-aging properties.

Application Guide for Heat Shrink Tubing

TS50（mastic）    TS60    TS80    

Operating Temperature: 60℃ / 70℃ / 85℃

Applicable External Corrosion Coating: PE, FBE, PP, or Steel; PE, FBE, PP; PE, FBE, PP

Pipe Preheat Temperature: 60℃, 75℃, 85℃

Recommended Rust Removal Grades: Sa2.5, St3.0

Shrink tube specifications

The product is applicable to all steel pipes with diameters ranging from DN25 to DN2000. The base material thickness ranges from 1.0 to 2.0mm, while the adhesive layer thickness varies from 0.8 to 2.0mm.

Performance specifications of heat shrinkable sleeves

Performance  Testing Method  Typical Value  Typical Value

WSS50（mastic）    WSS60    

Primer

Solid Content (%)  GB/T1728  99.5  99.5

Cathodic Stripping (65°C, 48h) mm Q/SY GJX0113-2007 (Appendix D) 8 8