guodun armor technology (18)

PE Fabric Produce Line

The PE fabric is made from close to a thousand high-strength UHMWPE fibers with cut-edge technology and is the main use by personal protective manufacturers. It became one of the main fabrics of bulletproof vests, bulletproof helmets, and hard armor plates over 15 years.

Read More »
guodun soft armor panel (14)

Bulletproof Vest Size

How to measure soft armor panel size to make body armor vest by us? Our OEM bulletproof vest makes according to customize draw and its size chart. It is required to submit values from A to M of each size before ordering. How to choice size for end users of bulletproof vest? Style of Guodun Armor bulletproof vests Protect area of Guodun Armor bulletproof vests Reference weight of Guodun Armor bulletproof vests

Read More »

What is UHMWPE fiber?

The UHMWPE fiber (Ultra High Molecular Weight Polyethylene Yarn) has 15 times stronger than steel and 40% stronger than aramid when weight for weight basis. It is the strongest yarn today for making cut-resistance gloves, high-strength ropes, and bulletproof fabrics. Its tenacity at breaking up to 45g/D and has goods performance on anti-UV, anti-chemicals, and anti-cut. Introduce of Ultra High Molecular Weight Polyethylene Yarn The Ultra-high-molecular-weight polyethylene (UHMWPE fiber) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene (HMPE yarn), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million annual. The longer chain serves to transfer load more effectively to the polymer backbone by strengthening intermolecular interactions. This results in a very tough material, with the highest impact strength of any thermoplastic presently made. UHMWPE fiber is odorless, tasteless, and nontoxic. It embodies all the characteristics of high-density polyethylene (HDPE) with the added traits of being resistant to concentrated acids and alkalis, as well as numerous organic solvents. It is highly resistant to corrosive chemicals except for oxidizing acids; has extremely low moisture absorption and a very low coefficient of friction; is self-lubricating (see boundary lubrication); and is highly resistant to abrasion, in some forms being 15 times more resistant to abrasion than carbon steel. Its coefficient of friction is significantly lower than that of nylon and acetal and is comparable to that of polytetrafluoroethylene (PTFE, Teflon), but UHMWPE fiber has better abrasion resistance than PTFE. UHMWPE yarn is also one of three major hi-tech fibers ( specifically the carbon fiber, aramid, and UHMWPE fiber), in addition, it is a super-strong polyethylene fiber that offers maximum strength combined with minimum weight. It is up to 10 times stronger than quality steel and up to 40% stronger than aramid fibers, both on weight for weight

Read More »
guodun soft armor panel (8)

How to make a bulletproof vest?

Step 1: Confirm the using condition and which kind of bulletproof material That has two main kinds of bulletproof material in the world today. One is UHMWPE bulletproof fabric and another is aramid fabric. Their main difference is as below: Character UHMWPE ARAMID Ballistic Performance Good Good Melt Point (Temperature) Max 150 degrees (Using better less than 50 degrees) >300 degrees Color White Yellow Cool Temperature -20 degrees – Weight Lightweight and can float on water – Anti UV Good – Cost Good – So, it always uses UHMWPE bulletproof fabric except it using for a fireman vest or high-temperature environments. Step 2: Confirm carrier vest style and functions The vest has different styles and functions according to the final requirements. It can convert style, combat style, tactical MOLLE style, quick release style, floating jacket style, and so on. The fabric can use camouflage, special color, anti-flame, anti-UV, anti-cut, anti-IR, and waterproof Polyester, Nylon, IIIA meta-aramid fabric, or other suitable fabrics. It can be made at your side or order from us directly. For more, see different style bulletproof vests. Step 3: Make a soft bulletproof panel according to your design and protection level To cut the bulletproof fabric according to the designed shape, it can use a laser cutter or high-quality garment cutter. Then put required layers together according to protect level requirement, add anti-trauma foam at wear face and then, pack tother using sewing of hot seal fabric technology. For more, see Bulletproof Backpack Inserts & Soft Armor Panel. Step 4: Make bulletproof plate if required high protection level Step 5: Complete the bulletproof vest It is easy! Open the pocket of the bulletproof vest, insert the soft armor panel and then, close the magic tape of the pocket. Important note than the STRICK FACE must put right

Read More »
bulletproof ceramic tiles and base plate

How to make a bulletproof plate?

The bulletproof plate is part of the high protection of body armor required to meet NIJ standard level III or IV. It means required to against rifle or high power bullets like 7.62x51mm NATO ball, 7.62x39mm AK47 MSC, 5.56x45mm SS109, .30 M2 AP, or similar. The soft armor vest always designed for handguns so, it required the bulletproof plate together. The bulletproof plate is rigid with the single or multi-curve. It calls a hard armor panel (HAP) or SAPI or ESAPI. And it always uses two pieces per body armor at the front and back to protect major organs of the body. To make one bulletproof plate, required to follow steps and it also suitable for making a bulletproof shield or armored vehicle panel. Step 1: Choose structure of bulletproof plate Regular has two structures of the bulletproof plate in the market today. One is pure PE and another is with ceramics. That has steel plate before but not use too much today because of too heavy. Pure PE only suitable for NIJ level III, III+ or RF1 up to RF2 plate The ceramic plate can use for all protect levels including level III up to IV / RF3 Step 2: Choose ceramic if required That has three types of ceramic canbe use in market today. >99% Alumina Oxide (Al2O3) Ceramic: weight ~3.9kg/mm, cheaper but heavy >85% Silicon Carbide (SiC) Ceramic: weight ~3.2kg/mm, competitive >85% Boron Carbide (B4C) Ceramic: weight ~2.2kg/mm, lightweight but expensive Alumina Oxide is a very low-cost solution today but silicon carbide is more welcome because of its lightweight. Boron carbide will be more use in future but its cost too high today. And for the ceramic, that has hexagon tiles, square tiles, or monolithic to choose from in the market. It is depending on the cost

Read More »
bulletproof aramid ud fabric.jpg

How to make bulletproof fabric / UHMWPE UD?

The bulletproof fabric is made from high-strength UHMWPE fiber with a Uni-Directional (UD) structure. The high-strength UHMWPE fiber has good performance when against the impact of the high velocity of bullets and, the UD structure can transfers the power quickly than women fabric in a short time. Step 1: Choose UHMWPE fiber or Aramid Fiber That has much fiber that can make bulletproof fabric. The Aramid fiber and UHMWPE fiber is the popular fiber today in the world. The tenacity of aramid fiber has ~22cN/dtex and for the UHMWPE fiber, the tenacity over 36cN/dtex today, which has over 40% stronger than aramid fiber. The well known main difference between aramid and UHMWPE fiber are: UHMWPE fiber is stronger and lightweight than aramid fiber Aramid fiber can heat higher temperature up to 500 degrees For more information, please see What is Ultra High Molecular Weight Polyethylene Yarn? and What is Aramid Fiber? Step 2: Choose Uni-Directional (UD) or Woven Structure The Uni-Directional structure is the fiber layer as 0/90 or 0/90/0/90 or 0/90/0/90/0/90 or more times. All fiber has no cross. The UD structure has fast transfer when the fiber heat high power impact so, it is better than woven structure as we knew. The woven structure is classic plain or similar which is easy to make by weaving machines. for more information, please see what is a uni-directional (UD) structure? Step 3: Use Right Resin The resin is the main material except for the fiber. It is very important for high-performance bulletproof fabric. It cannot order directly from outsourcing so, it always develops by engineers. Step 4: Use Professional Machine It just needs one professional machine to make bulletproof fabric after decided fiber and structure. The machine can spread evenly fiber on special film and fix with resin and then, laminated each

Read More »
Hand Glove Size Measuring

Hand Glove Size

Hand glove size is refer to United State of American and European standards. It is for people measure hand circumference and palm length to decide which size glove suitable for your hand.

Read More »

Your Requirements