Cold shrink tubing EPDM
Cold shrink tubing is an open ended sleeve, made primarily from silicone rubber or EPDM, it has been factory expanded or pre-stretched, and assembled onto a supporting removable plastic bar, cold shrink tubing shrinks upon removal of the supporting core during the installation process and the electrician slides the tube over the cable to be jointed, terminated or abandoned and unwinds the core, causing the tube to collapse down, or contract.
Cold shrink tubing EPDM is used to insulate wires, connections, joints and terminals in electrical work. It can also be used to repair wires, bundle wires together, and to protect wires or small parts from minor abrasion.
What’s the shelf life of the cold shrink tubing?
Because the cable accessories mainly composed of vulcanized silicone rubber expansion member is a polymer material, it can’t avoid the problem of aging of polymer materials, the aging factors are temperature cycling, ultraviolet radiation, external substances and so on, this is the process of polymer materials irresistible, so from the production of raw materials, materials began to enter the aging cycle. Especially after the expansion of the cold shrink tube, aging will greatly increase the shrinkage and permanent deformation rate of the shrink tube, and the shrinkage area of the cold shrink attachment itself is limited. If the permanent deformation is too large and exceeds the design allowance, the quality problem of the shrinkage can happen. The main reason is that the shelf life of the cold shrink tubing will not be too long, we’d better install the cold shrink tubing in 1 year or half year after the production date.
Packing method of cold shrink tubing
Packing by clear bags first, then packing them by carton.