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What is UD Non-woven Fabric?
Yankaian UD (Unidirectional) Non-woven Fabric is manufactured from Yankaian series Ultra-High Molecular Weight Polyethylene (UHMWPE) fiber using special adhesives and a proprietary production process. Fiber filaments are aligned in a single direction per layer, then plies are cross-laminated at 0°/90° to create a balanced, dimensionally stable composite panel.
The resulting fabric combines the extreme tensile strength and low density of UHMWPE fiber with the structural integrity of a consolidated sheet — making it the key intermediate material for both soft and hard ballistic protection systems.
Core Material Advantages
- Fiber tensile strength: up to 39+ cN/dtex — 15x stronger than steel by weight
- Density 0.97 g/cm3 — lighter than water, 32% lighter than aramid fiber
- Moisture absorption < 1% — ballistic performance unaffected by rain or humidity
- Excellent UV and chemical resistance for extended service life
- Operating temperature: -150 degrees C to +80 degrees C
- Biocompatible — suitable for extended body contact applications
J100 >= 33 cN/dtex High strength soft + hard | J200 >= 36 cN/dtex Ultra-high strength soft + hard | J280 >= 37 cN/dtex Premium grade soft + hard | J300 >= 39 cN/dtex Top-grade soft + hard | J400 >= 40 cN/dtex Ultra-premium hard armor | JX99 >= 31 cN/dtex High-area-density hard armor |
Higher grade number = higher fiber tensile strength and elastic modulus. Each grade is available in specific GSM configurations optimized for soft or hard armor applications.
Soft Armor UD Fabric — Grades J100 / J200 / J280 / J300
| Applications - Soft bulletproof vest inserts (handgun protection) - Anti-stab + bulletproof composite panels (SF102 system) - Flexible body armor carrier panels - Personal protective equipment for law enforcement and security
Key Characteristics - Available in 80 GSM (2UD), 160 GSM (4UD), and 240 GSM (6UD) per series - Soft, flexible, lightweight — comfortable for all-day wearable armor - Meets China GA2, GA3 domestic ballistic standards - Meets US NIJ IIIA standard against 9mm, .357 SIG, .44 Magnum - EVA backing option for reduced areal density at equivalent protection - Custom areal density available — optimized to your threat model
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Soft Armor UD Fabric — Full Specification Table
All soft armor grades are available in the configurations listed. Areal densities shown are per finished panel (two faces combined in a vest insert).
Series | GSM / Config | Type | Protection Level | Areal Density (kg/m2) |
J100 | 80 GSM / 2UD | Soft | GA2 | 4.5 kg/m2 (limit: 3.2 kg/m2) |
160 GSM / 4UD | Soft | GA3 | 5.5 kg/m2 | |
240 GSM / 6UD | Soft | NIJ IIIA 9mm | 5.5 kg/m2 or 4.2 kg/m2 + 0.5 EVA (limit: 1.95 kg/m2) | |
240 GSM / 6UD | Soft | NIJ IIIA .44 | 5.8 kg/m2 or 4.5 kg/m2 + 0.5 EVA | |
J200 | 80 GSM / 2UD | Soft | GA2 | 4.0 kg/m2 (limit: 2.56 kg/m2) |
160 GSM / 4UD | Soft | GA3 | 5.5 kg/m2 | |
240 GSM / 6UD | Soft | NIJ IIIA 9mm | 5.2 kg/m2 or 3.6 kg/m2 + 0.5 EVA (limit: 1.9 kg/m2) | |
240 GSM / 6UD | Soft | NIJ IIIA .44 | 5.5 kg/m2 or 4.2 kg/m2 + 0.5 EVA | |
J280 | 80 GSM / 2UD | Soft | GA2 | 3.8 kg/m2 |
160 GSM / 4UD | Soft | GA3 | 5.2 kg/m2 | |
240 GSM / 6UD | Soft | NIJ IIIA 9mm | 5.0 kg/m2 + 0.5 EVA | |
240 GSM / 6UD | Soft | NIJ IIIA .44 | 5.2 kg/m2 + 0.5 EVA | |
J300 | 80 GSM / 2UD | Soft | GA2 | 3.5 kg/m2 (limit: 2.2 kg/m2) |
160 GSM / 4UD | Soft | GA3 | 4.5 kg/m2 | |
240 GSM / 6UD | Soft | NIJ IIIA 9mm | 4.5 kg/m2 + 0.5 EVA (limit: 1.45 kg/m2) | |
240 GSM / 6UD | Soft | NIJ IIIA .44 | 4.8 kg/m2 + 0.5 EVA |
Limit values indicate the minimum areal density at which the protection level has been achieved in testing. Standard values include appropriate safety margin for production use.
+ 0.5 EVA = specification with 0.5 mm EVA foam backing included in system weight.
Hard Armor UD Fabric — Grades JX99 / J100 / J200 / J280 / J300 / J400
| Applications - Hard armor insert plates (ballistic inserts for plate carriers) - Vehicle and platform armor panels (MRAP, APCs, naval vessels) - Structural blast-resistant panels for buildings and vehicles - Composite helmet shells and ballistic shields - Aircraft and marine armor weight reduction programs
Key Characteristics - Hard armor grades use 120 GSM (2UD) and 240 GSM (4UD) configurations - JX99 uses 75 GSM (2UD) — optimized for extremely high areal-density applications - Covers NIJ IIIA through NIJ III+ (SS109) in pure PE systems - NIJ Level IV achieved with PE + ceramic composite plates - Significantly lighter than steel or pure ceramic solutions - Meets China GA3 and GA domestic hard armor standards
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Hard Armor UD Fabric — Full Specification Table
All hard armor grades and configurations from the product page are listed. Areal densities shown are total system weight per m2 at the stated protection level.
Series | GSM / Config | Type | Protection Level | Areal Density (kg/m2) |
JX99 | 120 GSM / 2UD | Hard | GA3 | 5.8 kg/m2 |
240 GSM / 4UD | Hard | NIJ IIIA | 5.8 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III AK47 | 18.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III M80 | 19.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III+ SS109 | 30.0 kg/m2 | |
J100 | 120 GSM / 2UD | Hard | NIJ IIIA | 5.8 kg/m2 |
240 GSM / 4UD | Hard | NIJ III AK47 | 17.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III M80 | 18.5 kg/m2 | |
J200 | 120 GSM / 2UD | Hard | NIJ IIIA | 5.5 kg/m2 |
240 GSM / 4UD | Hard | NIJ III AK47 | 16.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III M80 | 17.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III+ SS109 | 25.0 kg/m2 | |
J280 | 120 GSM / 2UD | Hard | NIJ IIIA | 5.2 kg/m2 |
240 GSM / 4UD | Hard | NIJ III AK47 | 15.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III M80 | 16.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III+ SS109 | 24.0 kg/m2 | |
J300 | 120 GSM / 2UD | Hard | NIJ IIIA | 4.8 kg/m2 |
240 GSM / 4UD | Hard | NIJ III AK47 | 14.5 kg/m2 | |
240 GSM / 4UD | Hard | NIJ III M80 | 15.0 kg/m2 + 0.5 EVA | |
240 GSM / 4UD | Hard | NIJ III+ SS109 | 22.5 kg/m2 | |
J400 | 75 GSM / 2UD | Hard | GA3 | 4.3 kg/m2 |
75 GSM / 2UD | Hard | NIJ IIIA | 4.3 kg/m2 | |
75 GSM / 2UD | Hard | NIJ III AK47 | 13.0 kg/m2 | |
75 GSM / 2UD | Hard | NIJ III M80 | 14.0 kg/m2 + 0.5 EVA | |
75 GSM / 2UD | Hard | NIJ III+ SS109 | 18.3 kg/m2 |
+ 0.5 EVA = specification includes 0.5 mm EVA layer in system weight.
JX99 series is engineered for maximum area density — ideal for applications where the highest ballistic protection per unit area is required regardless of weight.
NIJ III+ SS109 is a non-standard but widely-specified intermediate level between NIJ III and NIJ IV.