Homemade Body Armor

Anyone got homemade plates? I gave some 3a plates out last sekret santa. Making new molds of various shapes and sizes. Planning on 10x12 swimmers and squares. Also planning on 24x48 shield. I get fiberglass free, so I only have to buy ceramic and resin. Might get resin for free too if the stuff at work is viable.

250 Piece Survival Gear First Aid Kit

LifeStraw Water Filter for Hiking and Preparedness

250 Piece Survival Gear First Aid Kit

  1. 2 weeks ago
    Anonymous

    Square mold. Currently able to make a plate for ~$8

    • 2 weeks ago
      Anonymous

      Old plate. Survived hundreds of pistol and shotgun rounds before finally giving up. Only $8

      • 2 weeks ago
        Anonymous

        1st helmet attempt. Half as many layers of fiberglass as a plate with no penetration. Some guy did the math for me and it turned out any hit would still kill the wearer through energy transfer or something. I ended up shooting myself in the rib via ricochet when testing, but it wasn't too bad.

        • 2 weeks ago
          Anonymous

          >Some guy did the math for me and it turned out any hit would still kill the wearer through energy transfer or something
          He's a gay. People do survive shots to the helmet.

          A big thing for helmet survivability is that you have internal padding or suspension that prevents any deformation of the helmet backing from coming in contact with the skull.

          • 2 weeks ago
            Anonymous

            fiberglass helmets are actually much better at not deforming than kevlar. but without any padding, the chance of traumatic brain injury (even if non-fatal) is pretty high.

            >What sort of ceramic?? What sort of resin??
            Whatever is cheapest at menards. Techthisoutmeow had a certain ceramic that he said was best. I might look for that.

            >Techthisoutmeow
            he also did ceramic-infused resin, but he didn't use any fibers with it, so it failed pretty epically. Armor Innovations recently did a basalt/carbon fiber helmet build and test.

      • 2 weeks ago
        DeathFromAbove

        interesting, how thick to stop 7.62?

        • 2 weeks ago
          Anonymous

          Bout tree fifty

        • 2 weeks ago
          Anonymous

          I'm hoping for 1" maximum. I'll need to add ceramic for sure, possibly a thin metal plate too.

          Here is a standard plate with the same amount of layers as the helmet. It was penetrated easily. Helmet shape increased protection from penetration. Might have to experiment with making concave dragon scales, but that sounds like a lot of work.

          • 2 weeks ago
            Anonymous

            you need to properly brace your plates for testing. they should not be able to twist or bend AT ALL on impact otherwise you're over-rating them because you're introducing a greater cross sectional area for penetration than otherwise conventionally possible (unless your usecase is for them to fly away from the user to increase the plate's longevity).
            testing at 90 degrees is just one part, do a sharper angle like 60 or 45 degrees..
            dragon scales are a waste of time, everything comes down to cross sectional area, so unless your addition is a homogenous layer it will just create points of failure where that addition is not present or vice versa.
            also you can increase the strength of your plates by introducing a non-Newtonian fluid to soak the fibers during manufacture https://en.wikipedia.org/w/index.php?title=Dilatant

            • 2 weeks ago
              Anonymous

              Lmao, my work banned PrepHole on wifi.

              It's a thin plate. It stood no chance.

              a few layers of fiberglass impregnated with truck bed liner

              [...]
              [...]
              [...]
              how many layers of fiberglass was your plate and helmet? what weight of fiberglass did you use? what were the highest energy shots that stopped and went through?

              also, helmets require internal foam to disperse the energy of an impact, as do chest rigs for bigly rifles. 15mm of EPDM foam will *probably* keep you out of the brain injury special forces after a successful lead catch, but you need to test with a freakin' accelerometer to be sure.

              Good plate was 26 layers. I used both 18 and 24oz, but you can just stick with 18. Helmet used 12 layers.

              why does your mold have pubes and wtf is it made of

              It's fiberglass resin boards from the dumpster at work.

              [...]
              Try a bathroom tile sandwiched in there.

              I am looking at ceramic tiles. I think two layers backed by 30 layers of fiberglass should stop 308 fmj. Might add some .18" metal from an old fridge out back.

    • 2 weeks ago
      Anonymous

      why does your mold have pubes and wtf is it made of

    • 2 weeks ago
      Anonymous

      https://i.imgur.com/5Ld5PgL.jpeg

      Old plate. Survived hundreds of pistol and shotgun rounds before finally giving up. Only $8

      Try a bathroom tile sandwiched in there.

  2. 2 weeks ago
    Anonymous

    Got any more fruit snacks?

    • 2 weeks ago
      Anonymous

      No

  3. 2 weeks ago
    Anonymous

    Not to derail the thread, OP is doing fine work and I look forward to continued threads. This has me thinking, in regards to homemade armor....would "plates" made entirely of US quarters as dragon scales in a layer/encasing of duct tape be worth a frick at all? Like I'm thinking lay down duct tape, place quarters in desired shape, lay another layer of duct tape on top to seal them in, fold over edges, insert into carrier

    • 2 weeks ago
      Anonymous

      Laughably no. Maybe something weak like 22lr with enough layers, but coins are too soft.

    • 2 weeks ago
      Anonymous

      You could buy a shitload of steel discs on Amazon and harden them yourself. You would have to buy one of those electric electric crucible things

    • 2 weeks ago
      Anonymous

      I wouldn't do it with quarters and duct tape, but I like your thinking. Instead of making a plate out of them, just go full moron and make something like this Chinese armor out of Quarters. Probably won't be good for much other than a paki with a knife, but it would look cool.

    • 2 weeks ago
      Anonymous

      You could buy a shitload of steel discs on Amazon and harden them yourself. You would have to buy one of those electric electric crucible things

      Grade 8 fender washers.

    • 2 weeks ago
      Anonymous

      No. Plates are ceramic not metal because ceramic is harder and absorbs more energy.

      Ironically an amorphous diamond plate would be favorable as ballistic plates. Regular diamond has fractured planes (crystal planes/faucets) which is unwanted.

      • 2 weeks ago
        Anonymous

        you might want to look at IDEAL, which is a diamond-silicon carbide composite recently developed by the Pussians

        • 2 weeks ago
          Anonymous

          > a diamond-silicon carbide composite recently developed by the Pussians
          They're still issuing steel plates and WWI-vintage helmets.
          IF this stuff exists, which is a pretty damn big if, they might have a few tiles in a lab somewhere. But that's all.

          • 2 weeks ago
            Anonymous

            >they might have a few tiles in a lab somewhere.

            it would appear so: https://www.sciencedirect.com/science/article/abs/pii/S0272884223031735

            some Chinese researchers also just got a paper on it in the next issue of Ceramics International: https://www.sciencedirect.com/science/article/abs/pii/S0272884224014913

      • 1 week ago
        Anonymous

        You want interlapping layers of metal and ceramic for best protection.

        • 1 week ago
          Anonymous

          while there are designs like this still used, isn't ceramic on the outside as a strike face (maybe except a spall liner) overall more efficient?

          • 1 week ago
            Anonymous

            Clearly. Ceramic is always the better choice.

    • 1 week ago
      Anonymous

      Absolutely not. The plate has to be harder than the bullet in order to be effective.

  4. 2 weeks ago
    Anonymous

    what would be a good homemade spall liner?

    • 2 weeks ago
      Anonymous

      a few layers of fiberglass impregnated with truck bed liner

      https://i.imgur.com/XEVCRfW.jpeg

      I'm hoping for 1" maximum. I'll need to add ceramic for sure, possibly a thin metal plate too.

      Here is a standard plate with the same amount of layers as the helmet. It was penetrated easily. Helmet shape increased protection from penetration. Might have to experiment with making concave dragon scales, but that sounds like a lot of work.

      https://i.imgur.com/5Ld5PgL.jpeg

      Old plate. Survived hundreds of pistol and shotgun rounds before finally giving up. Only $8

      https://i.imgur.com/nQDBfvf.jpeg

      1st helmet attempt. Half as many layers of fiberglass as a plate with no penetration. Some guy did the math for me and it turned out any hit would still kill the wearer through energy transfer or something. I ended up shooting myself in the rib via ricochet when testing, but it wasn't too bad.

      how many layers of fiberglass was your plate and helmet? what weight of fiberglass did you use? what were the highest energy shots that stopped and went through?

      also, helmets require internal foam to disperse the energy of an impact, as do chest rigs for bigly rifles. 15mm of EPDM foam will *probably* keep you out of the brain injury special forces after a successful lead catch, but you need to test with a freakin' accelerometer to be sure.

      • 2 weeks ago
        Anonymous

        >helmets require internal foam to disperse the energy of an impact,
        Wrong! The internal foam keeps the bump formed on the inside of the helmet shell from cracking skull.

        • 2 weeks ago
          Anonymous

          uh, try taking even a .22 to an un-padded fiberglass helmet without getting a serious headache. while backface deformation is a serious issue with kevlar helmets (or stopping rifle fire and high velocity frags with a UHMW helmet), it is not the only hazard here. an un-padded helmet, even without ANY backface deformation, is going to concentrate all the energy of the impact in a small area of your skull and deliver that energy basically instantly. the padding is going to spread out that energy over time and area.

          BTW if you look at 3R Ballistics' high speed videos, you'll see that laminated fiberglass SIGNFICANTLY outperforms kevlar and UHMW in terms of low backface deformation

          • 2 weeks ago
            Anonymous

            >backface deformation is a serious issue
            Backface deformation against your skull can result in life-threatening intercranial hemorrhage. It is the most dangerous threat excepting being actually shot. Taking a 4-6kJ punch to the head sucks and can cause serious injury(to include risk of intercranial hemorrhage), but is much less dangerous.

            • 2 weeks ago
              Anonymous

              but even without ANY intracranial hemorrhage, high acceleration forces on the skull cause this: https://en.wikipedia.org/wiki/Diffuse_axonal_injury#Mechanism

              padding protects you from this, regardless of whether there is any backface deformation (or intracranial bleeding, for that matter) or not

    • 2 weeks ago
      Anonymous

      Fiberglass or carbon fiber. Nylon works too. Carbon fiber fabric is very accessible.

  5. 2 weeks ago
    Anonymous

    Have you considered using Boron Carbide roller bearing rollers in a LIBA configuration? The patent ran out several years ago, and thus the method for its fabrication is free to use. If I'm not mistaken, it's the origin of the /bag/ threads.

    • 2 weeks ago
      Anonymous

      The patent on the initial LIBA configuration ran out a while back, but the more specialized interlocking pellets remain tied up for at least a few more years.

      I am making a LIBA-esque plate with Silicon Carbide pellets.
      Went from Hand layup for the left plate, to a more consistent approach for the right. Future improvements are obviously a swap to a multicurve format rather than the current single-curve.

      https://i.imgur.com/zdPFlPE.jpeg

      hell yeah.

      get a magnetic stirrer and mix some of picrel into your resin. you might even manage to catch rifle fire with enough fiberglass just putting the ceramic into the resin, especially silicon carbide.

      There any S-glass woven roving? All I have ever seen is E-glass.

      • 2 weeks ago
        Anonymous

        yeah, look for 18 or 24 oz "boat" roving, it's all over Amazon.

        Any details on those silicon carbide pellets? How big are they, what binder are you using, and how thick?

        do you guys even do a modicum of material science or do you just find shit you think will be bullet resistant and glue it together?

        lol yeah google.com/scholar search for "impact" and "fiberglass" along with your desired chemical additive and you'll probably find 8 autists who've already tested it

        • 2 weeks ago
          Anonymous

          They are ~13mm thick, no binder between the pellets whatsoever. The fiberglass holds them in array, different than whatever Tencate used, or rubber in some other studies I have read.

      • 2 weeks ago
        Anonymous

        how do you do your molds? working on a prototype myself

        • 2 weeks ago
          Anonymous

          steel plate/sheet and C-clamps work fine

          you can also vacuum bag it with a process like VARTM

          • 1 week ago
            Anonymous

            but for the initial mold do you make like a box out of steel sheet or silicone or something? i almost want to machine it out of wood or plastic lmao

            • 1 week ago
              Anonymous

              the easiest is just clamping fiberglass between two steel sheets. a bit of plastic wrap helps to stop it from sticking.

  6. 2 weeks ago
    Anonymous

    hell yeah.

    get a magnetic stirrer and mix some of picrel into your resin. you might even manage to catch rifle fire with enough fiberglass just putting the ceramic into the resin, especially silicon carbide.

  7. 2 weeks ago
    Anonymous

    here's a 100x100x6mm level 3A tile made with 16 layers of 24oz fiberglass and Bondo fiberglass resin jelly

  8. 2 weeks ago
    Anonymous

    If I had access to free fibreglass I'd be making armoured panels for my car, bedroom and first floor landing.

  9. 2 weeks ago
    Anonymous

    this looks like a thread for me

    • 2 weeks ago
      Anonymous

      imagine the smell

    • 2 weeks ago
      Anonymous

      Are you going to tell us to just walk away?

    • 2 weeks ago
      Anonymous
    • 2 weeks ago
      Anonymous

      >the /k/ummando kometh
      I SURRENDER!!!!!

    • 2 weeks ago
      Anonymous

      Ah you're still around. Here's the guy u sent the test plates. I still have them laying around and still owe you a test with 7,62x39 if I recall correctly.
      Some months back I shoot the one without the tiles with a 44 mag and it didn't penetrate lol
      Need to look in the workshop for them

      • 2 weeks ago
        Anonymous

        very cool! I browse /k not as frequent anymore. Am browsing most of times on /misc/ /fit and /bant/pmg since /biz requires email verification. like

        [...]

        A fellow silver shizo incorporated me in some of his memes, I get a laugh out of it everytime. Infact I noticed IQDELET's Id and called him out on his shill tactics and his fitting Id.

        No rush in testing it out with rifle ammunition, just do if you ever feel like it. Only made this suit to give protection against criminals with pistols, if goons with rifles came after me I'd be dead anyways. Still would be interesting to see the results on the ceramic test tile. Was also in contact with the youtuber techthisoutmeow, but he never really got to testing my method out so far.

    • 2 weeks ago
      Anonymous

      the worst part is you still wont do anything. the only thing to come of all that work is this gif. sorry if you dont like the truth

      • 2 weeks ago
        Anonymous

        I've got a fairly similar armor setup I routinely wear when going e-scooter riding. tbh it's fun af to get into a crash that'd usually send you to the ER, but have no bruises.

      • 2 weeks ago
        Anonymous

        homie what do you want me to do, go on a rampage or something? In the very first /diy thread I said it's for shtf scenarios against roaming raiders. GOD I HATE FRICKING LOOTERS SO FRICKING MUCH! We have some floodings currently here in Bavaria and these oppurtunistic c**ts try to steal shit. Contractor at work told a coworker that an acquaintance of him sat on the balcony with a Flinte to deter these buttholes.

        Total raider death

      • 2 weeks ago
        Anonymous

        And the homosexual glowies have arrived

    • 2 weeks ago
      Anonymous

      sped kelly

    • 1 week ago
      Anonymous
      • 1 week ago
        Anonymous

        totally the inspiration for my e-scooter chest rig (4mm GR5 titanium plates over 25mm EPDM foam, under regular-ass HDPE motorcycle armor)

  10. 2 weeks ago
    Anonymous

    do you guys even do a modicum of material science or do you just find shit you think will be bullet resistant and glue it together?

    • 2 weeks ago
      Anonymous

      They're moronic felons, children, or poorgays who can't scrape together a couple hundred bucks for actual plates. What do you think?

      • 2 weeks ago
        Anonymous

        >why would you make something for fun rather than just buying it?
        Why are you even here?

      • 2 weeks ago
        Anonymous

        >They're moronic felons, children, or poorgays who can't scrape together a couple hundred bucks for actual plates. What do you think?
        My state made buying body armor illegal in response to being slapped for having unconstitutional gun laws.

        • 2 weeks ago
          Anonymous

          in my state, it's legal for moronic child felons to buy body armor. but all the monolithic plates out there are so big, and the impact protection of all the soft armor is so shitty. I want flexible hard armor, so I DIY.

      • 2 weeks ago
        Anonymous

        No. It is people having fun.

    • 2 weeks ago
      Anonymous

      You shoot it and see what happens. It's not rocket surgery, tardo.

      They're moronic felons, children, or poorgays who can't scrape together a couple hundred bucks for actual plates. What do you think?

      What makes you think felons and children can't buy plates?

    • 2 weeks ago
      Anonymous

      They're moronic felons, children, or poorgays who can't scrape together a couple hundred bucks for actual plates. What do you think?

      homosexuals and bootlickers

      This is probably illegal. You need a permit for body armor

      What shithole do you live in?

  11. 2 weeks ago
    Anonymous

    This is probably illegal. You need a permit for body armor

    • 2 weeks ago
      Anonymous

      no

      this looks like a thread for me

      can you shoulder a rifle with this setup on?

  12. 2 weeks ago
    Anonymous

    >so I only have to buy ceramic and resin.
    What sort of ceramic?? What sort of resin??

    I thought these things were unimaginably high-tech, now you're telling me I can make them in my garage?

    • 2 weeks ago
      Anonymous

      if you want a good entry-level combo, just get some Inland ABS-Like Plus resin and magnetically stir in 10% silicon carbide powder by weight.

    • 2 weeks ago
      Anonymous

      >What sort of ceramic?? What sort of resin??
      Whatever is cheapest at menards. Techthisoutmeow had a certain ceramic that he said was best. I might look for that.

      • 2 weeks ago
        Anonymous

        >Techthisoutmeow had a certain ceramic that he said was best.

        I think he ultimately used Alumina (Aluminum oxide) tiles in his flexible armor setup.

        Higher performance can be had with silicon carbide, silicon nitride, boron carbide, titanium carbide or titanium diboride, to name a few.

        • 1 week ago
          Anonymous

          Just in powder form or do you need ball-bearing pieces or sheets or what?

          • 1 week ago
            Anonymous

            powdered alumina will only work if it is mixed into a resin and laminated into a ballistic fiber, in which case it will increase the ballistic resistance of said fiber over a wide range of concentrations (optimal probably 5-20% by weight). only magnetic stirring for at least several hours will mix it well. alumina just mixed with resin, but no fiber, will not really do shit to stop bullets.

            alumina bearings or sheets or large pellets can stop bullets if they are incorporated into pretty much any armor design, so long as there is some kind of non-ceramic ballistic backing material (whether it be metal, plastic or some fiber)

  13. 2 weeks ago
    Anonymous

    Best armor is to not get hit

    • 2 weeks ago
      Anonymous

      Always good to have a backup plan from when the best practice of not getting shot isn't enough.

      • 2 weeks ago
        Anonymous

        A valid point sir

  14. 2 weeks ago
    Anonymous

    what's that mold made of? I'm tempted to try this.

    • 1 week ago
      Anonymous

      Fiberglass resin board from work.

      Why dont you use UHMWPE?

      I only have hdpe from milk jugs.

      • 1 week ago
        Anonymous

        >I only have hdpe from milk jugs.
        Didn't Techthisoutmeow do a video where he stopped rifle fire with those?

        imagine what you could do if you melted some silicon carbide pellets into them, kinda like

        https://i.imgur.com/nR2dtQR.jpeg

        The patent on the initial LIBA configuration ran out a while back, but the more specialized interlocking pellets remain tied up for at least a few more years.

        I am making a LIBA-esque plate with Silicon Carbide pellets.
        Went from Hand layup for the left plate, to a more consistent approach for the right. Future improvements are obviously a swap to a multicurve format rather than the current single-curve.

        [...]
        There any S-glass woven roving? All I have ever seen is E-glass.

        is doing with fiberglass

        but if you do enough

        https://i.imgur.com/zdPFlPE.jpeg

        hell yeah.

        get a magnetic stirrer and mix some of picrel into your resin. you might even manage to catch rifle fire with enough fiberglass just putting the ceramic into the resin, especially silicon carbide.

        style autism, I'm sure you'll catch rifle fire with *reasonably slim* fiberglass

  15. 1 week ago
    Anonymous

    Why dont you use UHMWPE?

Your email address will not be published. Required fields are marked *