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I wanted to touch on something we will all have a use for, adhesives. 2 part epoxy is another item that should be on your list very long shelf life super bonding for emergency repairs It can be mixed with metals like aluminum and steel I would imagine fiberglass fibers, carbon fiber to create a higher tensil strength. Hide glue (dry) this is a great wood glue as well as leather and fabric if it is kept in a container like a mason jar it will last as long as it stays dry untill mixed with water. you can buy wood glue in powdered form it is much like elmers but has a better bond Of course flour & water is a simple but effective glue wall paper was one of the ways to keep wind out before we had all the new building methods people did not have insulation many used newspaper or ye olde Sears & Roebuck catalog pages. to cover gaps in boards to keep out dust dirt insects and wind many old homes were lap and gap or bat and board simple single wall construction. Out houses were done this way nothing worse than having a crack allowing freezing air to blow through on yours ( crack that is ) I have used glues to make bed covers for dog beds repair tarps etc. I re-enforce the repair with stitching it also can be used to hold a seam until you can stitch it together I am no seamstress I have had to repair bikini covers tents tarps and make custom covers and bolt rope into a canvass sail. Tar although not a glue it can be used to seal a small area with cloth a layer of tar a piece of material and another layer of tar if you have a flat roof and get a leak if you have a compressor using a nozzel you can sweep your roof once the nozzle strikes the leak cut the area will puff up use a knife cut an X through the area fold it back and coat with tar put the flaps back and cover with tar cloth and more tar cover with dry sand and pea gravel. I guess I need to get into water proofing a bit bees wax linseed oil mink or neetsfoot oil wax even tallow on leather Remember that certain manmade chemicals do not react well over time with leather canvas or wood whatever you decide to use read up and have knowledge on how well they will work long term. Leather is the untimate recycling material I have seen jackets that are over a hundred years old had they been used and cared for would still be clothing instead od a stiff exhibit in a musem. Explorers ate the leather from their equipment boot repair was done with the tongue of the shoe or boot or a portion of the top. most foot ware and rain gear today are made from plastic that is not bad but once they are damaged most do not lend themselves to be repaired and the glues / adhesives have a very short shelf life. I mention shoes as they are the most important piece of survival gear next to a weapon, you cannot run jump or cover rocky or thorn riddled ground without risk of injury even debilitating or permanant one seaon of naked and afraid a simple thorn required medical intervention and antibiotics. most footware are for urban use not rough field use know the difference and always buy known and field tested footware and have a couple of pairs shoes or boots that fit and are comfortable. I offer this only as a primer I am neither a chemist, sailmaker or a shoe salesman I know what I have had to accomplish under field expedient conditions I do need to mention that many vegetable and trees have rosins or sap that have good adhesive quaities but do usually require some fiber, sittching or wrapping to achieve their highest potential.