Duct tape is an essential tool to be included in any survival kit or bug out bag.
Invented in the early 1940s by scientists at Permacell (a division of the Johnson & Johnson Co.), duct tape was built to fill the need for a strong, flexible, durable tape that could help the war effort, according to Henkel Consumer Adhesives, one of the world’s largest makers of the stuff.

The main point is that it has a number of uses and can help you make emergency repairs on just about everything.
Ideal for a SHTF or TEOTWAWKI situation!

Here’s just a couple of things you can do with it in a survival situation:

-  Make emergency repairs on, tents, gear, bags, tarps, pack, sleeping bag, clothing, rain gear, etc….
-  Medical Uses – making large bandages, adding padding to blisters, and making slings. It can also be used for wrapping sprained ankles in an emergency.
-  Sealing Windows and doors
-  Making emergency temporary repairs to you vehicle.
-  Stopping Leaks
-  Repairing Torn Clothing and Warn out shoes.
-  Waterproofing
-  Wrapping plastic water bottles to prevent cracking and leaking.