Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC. Heat activated adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief. Highest shrink ratio - shrinks to 13 original size. Shrinks at 257 F125 C. Operating temperature range of -40 C to 110 C. Product Features Ancors Marine Grade terminals differ from automotive terminals by being designed for harsh marine environment Nylon insulators are easy t