I reckon the plastic bit is there to keep the fabric layers in the vest from getting all floppy. Without it, the layers might just collapse in on themselves, making the vest kinda useless. So, it's basically there to keep things sturdy and working right.
The reason there’s not more plastic sheets is as follows: more plastic would create a higher likelihood of the fabric layers sliding. The fabric not having many barriers allows for it to absorb energy on impact as opposed to having a deflecting/dispersing affect that could crumple the fabric or deflect the knife into other, unprotected body parts. Hope this makes sense.
Justins steel toe water proof boots, pricey depending on foot size but very good quality and long lasting. Have the same pair i bought 3-4 years ago and work construction and work on a farm
The plastic interlayer does not provide any extra stability in terms of stab security, it is only intended to ensure that in cheaper vests where no other layers are really processed with other materials as usual, the layers cannot slip around or rearrange themselves
Surprised 13 people upvoted your word salad. you just contradicted yourself, if DOES provide extra stability since, as you said. it stops layers from slipping around thus reducing the effectiveness of the vest
@@crazedmonk8u all good mad guy Something that makes something hold together better in a light frame doesn't necessarily mean that something holds together better for a bullet or to stop things For example, just that things in the vest can't slide around
Those are most likely uhmwpe or “ultra high molecular weight polyethylene” or nylon because they are typically white. Kevlar and aramid fabrics are a light yellow color typically. I have no idea what that little laminate in the middle is for. It might just be to help it retain its shape or absorb the impact by deforming.
It's UHMWPE. Nylon isn't anywhere near as strong as Kevlar or UHMWPE, and would be far less effective for the same thickness. The plastic sheet is just a stiffener to stop the vest from bunching up, and is almost certainly made from the same cheap "blister pack" plastic that many goods are shipped with. Not only is Polycarbonate relatively expensive, but it also doesn't tend to break up like that sheet did when struck.
I'd like to see how strong each individual layer is. How resistent to slashes, stabs tears and stretching is one layer? How many layers is there? What is it made of?
Just saying, you could get 2 of those vests and then take the plastic layers out to make your own vest... Might be expensive though, i don't know about the price.
Very probably not. In theory, the impact on a surface that cannot dissipate any of the energy would be significantly worse, which is why the basic principle of kevlar use never really changes
@@KekW.... Epoxy is currently used in bulletproof vests. These are called "multilayer armor systems" and are made with epoxy-soaked ramie and/or aramid fiber cloths. Can you be a bit more specific on why it wouldn't work? Since it, you know, works?
@@paulthetexan they are yea in multi layered . But If youre rly going up you get keflar systems First and then at a specific Level you switch to plate carriers or combinations because at some point the stopping Power effect is simply no longer sufficient or efficient enough and that's as if you said that here is a certain engine but that is simply not used in eight out of ten cars Just because there are better engines
@@KekW.... Bro..knives have less power than bullets. If it works in bulletproof vests, even low-level ones, then you'll need to provide an actual reason why it wouldn't work against knives. Just because 12 liter engines exist doesn't mean you need one for your lawnmower.
Not sure what they're made of but if memory serves me right stab vests are rated at something like 900 pounds per inch with an ice pick. When I worked corrections we wore these during "dynamic incidents ".
Stab resistance and spike resistance are in fact two different things, and alongside bullet resistance, they each have their own specific official tests and ratings. A vest may be designed to protect against one or more, but each threat requires armour with different properties. Bullet resistance doesn't guarantee stab resistance, and spikes can often defeat either. It all depends on the shape and sharpness of the spike, it's mass and the energy involved. Soft armour often struggles against spikes.
Polycarbonate is a great material, excellent at stopping many threats, especially spikes, which soft armour struggles with. But it has some drawbacks. It isn't flexible, so can restrict movement of the wearer. It requires expensive, bespoke machinery to shape and trim it. Like plate armour of old, it's not as easy to mass produce armour that fits a variety of people, unlike soft armour, where you can get away with just 3 or 4 standard sizes. Polycarbonate can become more brittle in cold weather.
Great video! It's felt, a kind of tradtional anti stab material. It's almost the first generation of NON-METAL anti-stab materials. But Shortages are obviously: thick, heavy. The newest generation of stab resistant material is featured Soft (bending, flexibile well), Thin(less than 1cm), Light, Seamless, and upgradable to be bullet and stab dual proof. Welcome your visit @shenzhoustab.
My guess is probably a fiberglass fabric. I would use that stuff, and probably a 16th inch of poly carbonate in the middle with a layer of that thin plastic in the front and back if I were to make a lightweight armor.
It isn't fibreglass, it's UHMWPE. A very strong plastic, and when used in unidirectional, non woven laminate or dense felt, it is extremely good at stopping blades. Glass fibres alone don't cope well with high energy impacts, and they don't take well to repeated bending and creasing like a traditional fibre. That's why the vast majority of glass fibre is used in composite form.
That product in China that has not obtained the professional stab proof certificate from developed countries. The price is usually very low, and the internal materials only have a little effect. If you want to test, we can send you one of our products. We are the only Chinese company that has obtained German and American stab proof certificates.
the plastic is like ceramic in a bullet proof plate lv4. it dulls the tip giving more chance of next stabs not penetrating. if there was more than 1 it wouldnt do a whole lot and would decrease mobility. the cloth does the most of the work.
I would be inclined to believe that except for the fact a single sheet of plastic (if it really is just a sheet of plastic) is not going to dull a knife that much, it just wouldn't. You aren't necessarily wrong but a bit exaggerated maybe...
@@mikeburns3616I'm afraid you're wrong. The website you read it on is clearly incorrect. The plastic sheet offers no extra protection, it is simply there to stop the layers of fabric bunching up and to keep the vests shape. Even the very early ballistic nylon flak vests from the Korean war era used the same trick. It isn't plexiglass, it's a plastic of the sort used in cheap blister packs. You can see from the way it disintegrated... it is far too thin and fragile to affect the blade in any measurable way. A 2mm or thicker polycarbonate sheet would be effective, but then it wouldn't be flexible, and you also wouldn't need the felt at all. The felted UHMWPE is doing all the work.
It's UHMWPE, in this case in the form of a non-woven, very dense, felted material. It is also often made into thin, non-woven sheets, consisting of thousands of unidirectional fibres sandwiched together using heat and pressure for use in flexible body armour. Many sheets can be pressed into thick, solid plates for protection from high velocity projectiles. Not to be confused with the solid sheets of UHMWPE you buy at a hardware store, which are simple, non fibrous slabs that don't stop even low velocity bullets.
@@JoshJackson13The plastic in the vest is NOT Lexan. It's just a cheap, thin and clearly quite fragile plastic that's often found in blister packs. It's job is simply to keep the vests shape and stop the fabric layers from bunching up. A layer of polycarbonate thick enough to provide any extra protection wouldn't be flexible enough, and acrylic sheet would have to be even thicker.
You end up with a thick vest which is less flexible, heavier and a lot warmer... exactly as you would expect. Best to keep the plastic in there, it's there to stop the layers bunching up and to keep the vests shape.
You put enough layers of paper and it's going to stop what's this and will be a lot cheaper see what's the biggest paperback you can stabbed through you'd be surprised it's not that big
The reason they use plastic materials like KEVLAR and UHMWPE is because the strength to weight ratio of those is considerably higher than most metals. Weight for weight, Kevlar is 3x as strong as steel, They are usually flexible, not rigid like metals. It's generally only when soft armour becomes too bulky to be practical that they use metal.
Looks like cheap plastic whose sole purpose is to keep the vests shape and stop fabric bunching up. Even if it were LEXAN, that sheet is far too thin and fragile to make any practical difference in protection and LEXAN is relatively expensive.
So, use a material that is at best one quarter the strength of Kevlar, and unless it's ultra high quality fabric, it's quite likely to be even less. Gambeson were effective against slashes and blunt trauma, but even with 30 layers of linen, they always faired poorly against thrusts from sharp, pointed weapons. Standard NIJ level 3A Kevlar bullet resistant vests fail the NIJ's own stab resistance tests. Dupont created a version specifically to protect against knives and shanks, because you need a different yarn structure and a tighter weave. And if like me, you had felt the weight of a short 30 layer linen gambeson, you'd soon change your mind.
It's UHMWPE felt, not Kevlar. Bulletproof vests aren't necessarily stabproof, and vice versa. Armour requires different properties for each, so will be certified as ballistic, stab or spike resistant, or some combination of the three. Check out the various international armour standards such as the USA NIJ and British HOSDB. There are even videos on TH-cam showing knives going through "bulletproof" vests.
Well, you made two points about the materials, and they were both wrong. It's not Kevlar, it's a UHMWPE felt, and that plastic isn't polycarbonate. Even polycarbonate that thin wouldn't add any meaningful protection, and would be a waste of money as it's a relatively expensive material. You only have to look at the way it disintegrated in the vest to see it's just a cheap plastic sheet to keep the shape of the vest.
I reckon the plastic bit is there to keep the fabric layers in the vest from getting all floppy. Without it, the layers might just collapse in on themselves, making the vest kinda useless. So, it's basically there to keep things sturdy and working right.
I would think it would be more stab resistant when worn as opposed to on a wooden table. The body is more flexible
True, the fact that you would still get a pin prick on say your rib (as a hard surface) is actually kinda impressive, cool to see the breakdown.
You know that he originally tested it fitted on to a punchbag for that very reason?
The reason there’s not more plastic sheets is as follows: more plastic would create a higher likelihood of the fabric layers sliding. The fabric not having many barriers allows for it to absorb energy on impact as opposed to having a deflecting/dispersing affect that could crumple the fabric or deflect the knife into other, unprotected body parts. Hope this makes sense.
Can you test waterproof boots? I can never find an actual real waterproof pair
muks
I think I seen some fly-fishers wear. Look it up
@@AbundanceTribe yea they have buncha diffrent ones
I also have a pair of Ariats that r water proof if you wanna go more traditional
Justins steel toe water proof boots, pricey depending on foot size but very good quality and long lasting. Have the same pair i bought 3-4 years ago and work construction and work on a farm
That plastic thing is crafted by ancient elven magic.
Elven magic is best magic (:
The History Channel told me ancient aliens did it.
And my axe!
Be careful with this info. We don’t want the Europeans to come raiding the poor Elven mages of their sacred plastic.
Mythril
Another exciting episode and Tyler still has all his fingers.
The plastic interlayer does not provide any extra stability in terms of stab security, it is only intended to ensure that in cheaper vests where no other layers are really processed with other materials as usual, the layers cannot slip around or rearrange themselves
Surprised 13 people upvoted your word salad. you just contradicted yourself, if DOES provide extra stability since, as you said. it stops layers from slipping around thus reducing the effectiveness of the vest
@@crazedmonk8u all good mad guy
Something that makes something hold together better in a light frame doesn't necessarily mean that something holds together better for a bullet or to stop things For example, just that things in the vest can't slide around
Those are most likely uhmwpe or “ultra high molecular weight polyethylene” or nylon because they are typically white. Kevlar and aramid fabrics are a light yellow color typically. I have no idea what that little laminate in the middle is for. It might just be to help it retain its shape or absorb the impact by deforming.
The plastic layer is probably lexan polycarbonate, however a single layer won't give you protection, that lexan sheet is more a stiffener for the vest
It's UHMWPE. Nylon isn't anywhere near as strong as Kevlar or UHMWPE, and would be far less effective for the same thickness. The plastic sheet is just a stiffener to stop the vest from bunching up, and is almost certainly made from the same cheap "blister pack" plastic that many goods are shipped with. Not only is Polycarbonate relatively expensive, but it also doesn't tend to break up like that sheet did when struck.
The inserts are removable so you can wash the carrier vest! These things get stinky if you wear them 40 hrs a week xp
Who knew I’ll get so much entertainment watching a man dissect a vestLOL
Good video the making of different vest would be cool to see
I'd like to see how strong each individual layer is. How resistent to slashes, stabs tears and stretching is one layer? How many layers is there? What is it made of?
Just saying, you could get 2 of those vests and then take the plastic layers out to make your own vest... Might be expensive though, i don't know about the price.
Yes. Make your own. Maybe use felt? And lots of plastic! Maybe a piece of sheet metal.
I bet you could soak that cloth in epoxy and although it would be heavier, it would be even more stabproof.
Very probably not. In theory, the impact on a surface that cannot dissipate any of the energy would be significantly worse, which is why the basic principle of kevlar use never really changes
@@KekW.... Epoxy is currently used in bulletproof vests. These are called "multilayer armor systems" and are made with epoxy-soaked ramie and/or aramid fiber cloths. Can you be a bit more specific on why it wouldn't work? Since it, you know, works?
@@paulthetexan they are yea in multi layered .
But If youre rly going up you get keflar systems First and then at a specific Level you switch to plate carriers or combinations because at some point the stopping Power effect is simply no longer sufficient or efficient enough and that's as if you said that here is a certain engine but that is simply not used in eight out of ten cars Just because there are better engines
@@KekW.... Bro..knives have less power than bullets. If it works in bulletproof vests, even low-level ones, then you'll need to provide an actual reason why it wouldn't work against knives. Just because 12 liter engines exist doesn't mean you need one for your lawnmower.
@@KekW....Word salad.
Tlyer and knifes are scarey 😂😂😂😂😂
What sucks is that even though it'll stop a few calibers of bullets and most blades it's still gonna really hurt
Not sure what they're made of but if memory serves me right stab vests are rated at something like 900 pounds per inch with an ice pick. When I worked corrections we wore these during "dynamic incidents ".
Stab resistance and spike resistance are in fact two different things, and alongside bullet resistance, they each have their own specific official tests and ratings. A vest may be designed to protect against one or more, but each threat requires armour with different properties. Bullet resistance doesn't guarantee stab resistance, and spikes can often defeat either. It all depends on the shape and sharpness of the spike, it's mass and the energy involved. Soft armour often struggles against spikes.
The plastic is for rigidity
Giggity
Remember, whatever you make your own vest from, it has to be the same weight or less, and the same cost or less.
use Polycarbonate You cannot by it in sheets
Those plastic Vase you threw on the floor that would not break was Polycarbonate.
Polycarbonate is a great material, excellent at stopping many threats, especially spikes, which soft armour struggles with. But it has some drawbacks. It isn't flexible, so can restrict movement of the wearer. It requires expensive, bespoke machinery to shape and trim it. Like plate armour of old, it's not as easy to mass produce armour that fits a variety of people, unlike soft armour, where you can get away with just 3 or 4 standard sizes. Polycarbonate can become more brittle in cold weather.
Great video! It's felt, a kind of tradtional anti stab material. It's almost the first generation of NON-METAL anti-stab materials. But Shortages are obviously: thick, heavy. The newest generation of stab resistant material is featured Soft (bending, flexibile well), Thin(less than 1cm), Light, Seamless, and upgradable to be bullet and stab dual proof. Welcome your visit @shenzhoustab.
make your own vest
No way. If you buy a pack of dryer sheets you can make a stab proof vest 😮
It's the same plastic that Superman threw at the bad guy and wrapped them up.
My guess is probably a fiberglass fabric. I would use that stuff, and probably a 16th inch of poly carbonate in the middle with a layer of that thin plastic in the front and back if I were to make a lightweight armor.
It isn't fibreglass, it's UHMWPE. A very strong plastic, and when used in unidirectional, non woven laminate or dense felt, it is extremely good at stopping blades. Glass fibres alone don't cope well with high energy impacts, and they don't take well to repeated bending and creasing like a traditional fibre. That's why the vast majority of glass fibre is used in composite form.
That product in China that has not obtained the professional stab proof certificate from developed countries. The price is usually very low, and the internal materials only have a little effect. If you want to test, we can send you one of our products. We are the only Chinese company that has obtained German and American stab proof certificates.
1:43 Just the tip...
Try a water vest. And one of varying types of air- condensed air, smoky air, smelly air, etc.
1:44 that's how they get you. The ol "just the tip" trick
i want a link to this vest
the plastic is like ceramic in a bullet proof plate lv4. it dulls the tip giving more chance of next stabs not penetrating. if there was more than 1 it wouldnt do a whole lot and would decrease mobility. the cloth does the most of the work.
I would be inclined to believe that except for the fact a single sheet of plastic (if it really is just a sheet of plastic) is not going to dull a knife that much, it just wouldn't. You aren't necessarily wrong but a bit exaggerated maybe...
its plexiglass so it dulls it like running it through concrete and on the website, its sold from explains it exactly like i did.@@ProdThrash
@@mikeburns3616I'm afraid you're wrong. The website you read it on is clearly incorrect. The plastic sheet offers no extra protection, it is simply there to stop the layers of fabric bunching up and to keep the vests shape. Even the very early ballistic nylon flak vests from the Korean war era used the same trick. It isn't plexiglass, it's a plastic of the sort used in cheap blister packs. You can see from the way it disintegrated... it is far too thin and fragile to affect the blade in any measurable way. A 2mm or thicker polycarbonate sheet would be effective, but then it wouldn't be flexible, and you also wouldn't need the felt at all. The felted UHMWPE is doing all the work.
Diesel Beard
It’s like Kevlar. Just a bunch of tighly wound synthetic fibres
It's UHMWPE, in this case in the form of a non-woven, very dense, felted material. It is also often made into thin, non-woven sheets, consisting of thousands of unidirectional fibres sandwiched together using heat and pressure for use in flexible body armour. Many sheets can be pressed into thick, solid plates for protection from high velocity projectiles. Not to be confused with the solid sheets of UHMWPE you buy at a hardware store, which are simple, non fibrous slabs that don't stop even low velocity bullets.
Can you hammer a nail through it?
Have you done tests with chain mail???
Leave it in a jar of something
Pickle juice!
RIGHT!! I Miss Them Videos Lmaooooo 😂😂😂
Tyler, you should try to make your own fabric-plastic vest
how do you not know what Kevlar is...
Flex Tape stab proof vest FTW!
I'm guessing here... stab proof stuffing
I know I'm late to the party but you should buy a proper surplus vest and compare it against these knock off ones.
You just know oj Simpson has been taking notes..
"Kevlar"
sheets of lexan Tyler....we use it in Australia
That's what the plastic is in the vest. Plexiglass works too
@@JoshJackson13The plastic in the vest is NOT Lexan. It's just a cheap, thin and clearly quite fragile plastic that's often found in blister packs. It's job is simply to keep the vests shape and stop the fabric layers from bunching up. A layer of polycarbonate thick enough to provide any extra protection wouldn't be flexible enough, and acrylic sheet would have to be even thicker.
What if you buy like four vest take the plastic out of the rest of them and put it all into one vest
You end up with a thick vest which is less flexible, heavier and a lot warmer... exactly as you would expect. Best to keep the plastic in there, it's there to stop the layers bunching up and to keep the vests shape.
You put enough layers of paper and it's going to stop what's this and will be a lot cheaper see what's the biggest paperback you can stabbed through you'd be surprised it's not that big
Wouldn't it be better to use something stronger than plastic like metal or something like that??
No. Metal adds more weight.
@@rashira9610 Yeah i thought so i just wasn't sure if there was a way to make it work.
The reason they use plastic materials like KEVLAR and UHMWPE is because the strength to weight ratio of those is considerably higher than most metals. Weight for weight, Kevlar is 3x as strong as steel, They are usually flexible, not rigid like metals. It's generally only when soft armour becomes too bulky to be practical that they use metal.
it's gonna leak all the stab proof chemicals :(
Hey Tyler
comment of all "TIME" 2/8 i made bombass nachos so dame good
Looks like lexan
Looks like cheap plastic whose sole purpose is to keep the vests shape and stop fabric bunching up. Even if it were LEXAN, that sheet is far too thin and fragile to make any practical difference in protection and LEXAN is relatively expensive.
Is it cut proof ... Lol it's a stab resistant durrrr
I"M HERE!!!!
use flax cloth like in a gambeson
So, use a material that is at best one quarter the strength of Kevlar, and unless it's ultra high quality fabric, it's quite likely to be even less. Gambeson were effective against slashes and blunt trauma, but even with 30 layers of linen, they always faired poorly against thrusts from sharp, pointed weapons. Standard NIJ level 3A Kevlar bullet resistant vests fail the NIJ's own stab resistance tests. Dupont created a version specifically to protect against knives and shanks, because you need a different yarn structure and a tighter weave. And if like me, you had felt the weight of a short 30 layer linen gambeson, you'd soon change your mind.
😂 See if it's flammable
You should totally make a spray foam stab proof vest, now that would be cool and funny too see. Love your videos keep up the hard work.
Gotta test it on a dummy, table is too stiff.
Sorry to break it to you, but he tested it strapped on to a punchbag. This is just a follow up video to show what's inside the vest.
That's just a bullet proof vest.
Funni Kevlar
It's UHMWPE felt, not Kevlar. Bulletproof vests aren't necessarily stabproof, and vice versa. Armour requires different properties for each, so will be certified as ballistic, stab or spike resistant, or some combination of the three. Check out the various international armour standards such as the USA NIJ and British HOSDB. There are even videos on TH-cam showing knives going through "bulletproof" vests.
The plastic is to help keep the shape of the vest
Chinese asbestos
The fabric looks like oil absorbent rags.
I know it’s called a stab proof vest but I wonder if could handle a bullet
That plastic piece probably helps keep the fabric pieces from just folding over on itself in their.
I'm the 777 person to view this !
I was the 666’th
@@YoursUntruly lol dang
The fabric is kevlar and the plastic is a thin layer of polycarbonate. The same "plastic" you see in between layers of glass in bulletproof windows
Well, you made two points about the materials, and they were both wrong. It's not Kevlar, it's a UHMWPE felt, and that plastic isn't polycarbonate. Even polycarbonate that thin wouldn't add any meaningful protection, and would be a waste of money as it's a relatively expensive material. You only have to look at the way it disintegrated in the vest to see it's just a cheap plastic sheet to keep the shape of the vest.
First!
First😊
I just walked in to say... Nobody cares. We already know that.
what's inside of a vest proof stab jacket