Closer patch

Many pipeline installers who use heat-shrinkable heat-shrink insulation have complained that the insulation does not adhere well to the pipe surface or that it peels off after a while, for various reasons, including Not preparing the pipe surface, improper preheating, insufficient heating when shrinking the heat insulation, and not properly mixing A, B epoxies and other reasons.

PCI, which stands for Permanent Change Indicator, helps the installation technician to control the heating required to shrink the soldered insulation to the pipe surface. There are ridges on the soldered insulation that disappear and disappear when the heating is complete. This high technology distinguishes Cheri Polymer products from others. There is also a similar technology for patch closures, which transforms the adhesive from opaque to transparent by heating it sufficiently.