3:1 SHRINK RATIO-3:1 heat shrink ratio and will shrink to the original 1/3,and makes a tight seal.
When the Heat-shrink tube shrinks, the glue film on the inner wall will melt and then it will be adsorbed on the surface of the object tightly so as to connect tightly, insulate, and seal off perfectly.
Good Tightness - Dual Wall Adhesive Heat Shrink Tube has the advantages of good electrical insulation, good sealing and high temperature resistance. After being shaunk, it's thick and stays stuck. And give you a tidy connection or electrical insulation
DUAL WALL TUBING - Provides enhanced protection from wear and tear. The outer wall provides abrasion resistance. The inner wall creates a waterproof seal and strain relief
WIDELY USE - Our heat shrink tubing are widely used in wire connection, aust prevention and corrosion protection of solder joints, protection and insulation processing of wire end, wiring harness and electronic components, and audio and electrical DIY and so on.