Covalence HTLP

Quick Overview

Covalence® HTLP60-DCS system is a wraparound heat-shrinkable sleeve which replicates the structure and the performance of factory applied three-layer polyolefin coatings. While curing, the epoxy forms strong mechanical and chemical bonds to the pipe surface & to the copolymer adhesive layer. The cross-linked outer layer forms a tough barrier against mechanical damage and moisture transmission. Features of the product include that it is fully resistant to shear forces induced by soil and thermal movements, it can be sleeve applied over wet epoxy, allowing fast installation and formation of strong mechanical & chemical bonds, it has superior cathodic disbondment and hot water immersion resistance, it fully reconstructs the coating of three-layer coated pipes, and its dimpled backing provides a “permanent change” indicator for application of heat. Benefits of the product include that the HTLP is tough & lasts as long as a 3-layer, factory applied coating, it allows fast application combined with high performance, it offers the optimum barrier protection against corrosion, HTLP systems allow three layer coated pipelines to have a virtually monolithic coating system, and its dimpled backing allows easy post-heat inspection and offers a reliable inspectability at any time. Product comes as a cut piece (pre-cut sleeve and separate closure patch).