Kevlar

KEVLAR® is a space-age material designed by DuPont Industries. The material has been used for bullet-proof vests, helmets, masks, and friction absorption in the automotive and aerospace industries among other applications.
General Features of KEVLAR® :

High Tensile Strength at Low Weight
Low Elongation to Break High Modulus (Structural Rigidity)
Low Electrical Conductivity
High Chemical Resistance
Low Thermal Shrinkage
High Toughness (Work-To-Break)
Excellent Dimensional Stability
High Cut Resistance
Flame Resistant, Self Extinguishing

Historic Kevlar Explination Video
From Beerio’s Manual
When working with Kevlar, don’t think of it as sewing, but as making armor such as the medeval warrior did with leather.
1. Find some clothes that fit you as you would like your new suit to fit. I would suggest something old, stained and with holes in it because you are going to be disassembling them.
2. Cut the clothes up along the seam. Becareful to use the seam because that is how the patterns were assembled originally.
3. Use the new patterns to outline where the cuts will be on the kevlar fabric.
4. Cut the kevlar carefully as marked.
5. Assemble the kevlar along the seams as the original suit was.
Some key points:
Practice on some cheap fabrics in case your first attempt does not go good the first time. Kevlar is VERY expensive. Don’t think of the fabrics you practice on as wasted because they can be used for other purposes such as normal day use (if they are really bad looking you can wear it around the house or for bed clothes)
You can also dye them and wear them over your kevlar suit. Kevlar is strong but not very fashionable.
You do not need to use a needle and thread to assemble the patterns together. Rivets, screws and powerful glue are other ways to fashion kevlar together.
Kevlar’s main weaknesses are that it decomposes under alkaline conditions or when exposed to chlorine.
20 layers are needed to stop a 9mm handgun bullet traveling at 1200 feet per second

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