Adhesive lined heat shrink tubing, sometimes referred to as ‘Dual Wall’ because of the layer of glue that coats the inside of the sleeve.

When applying heat, the glue melts and flows at the same time. As the tubing shrinks and squeezes down, the glue is forced into the gaps to encapsulate the substrate. The end result is a protective insulation sleeve that seals and locks in place.

Adhesive lined products are particularly useful for environmental protection, in areas where water and dust are common. They are also used in applications where the tubing needs to be glued in place so it does not move.