Product Introduction
ESAPI is a military specification for military inserts, not a NIJ standard. It complies with NIJ 0101.06 Level IV; the mainstream material of ESAPI B4C Plate is B4C carbide ceramic, with a larger protective area than the standard 10×12 SAPI and broader shoulder coverage. It is compatible with most SAPI vest plate pouches. This product is made of carbide ceramic + PE material, featuring high protection level, light weight, ease of use, and resistance to multiple impacts. It uses a composite bulletproof plate composed of a whole piece of carbide ceramic. Carbide ceramic bulletproof ceramics have high hardness, high strength, wear resistance, good physical properties, and good neutron absorption capacity, meeting GJB enhanced bulletproof standards and Russian standard BR5 bulletproof standards. They are applied in various scenarios such as individual body protection, armor protection, and neutron radiation protection.

ESAPI B4C Plate Materials and Design
The strike surface is made of tough B4C ceramic.
Kevlar and other composite materials are used as the backing to capture fragments.
The arc-shaped design fits the curves of the chest and back.
It is heavier and thicker than SAPI bulletproof plates, capable of withstanding greater threats.
How to choose bulletproof inserts
Protection weight requirements:
- If you want lightweight, B4C ceramic is the first choice.
- For general lightweight requirements, you can choose silicon carbide ceramic.
- For applications with low weight requirements, you can consider using zirconia or alumina ceramics.
Consider cost requirements:
- If your budget is limited and the protection level is not high, you can consider zirconia ceramics.
- The most cost-effective material is silicon carbide ceramic, which has high efficiency, protection, and durability.
- If you have high performance requirements and a sufficient budget, you can choose B4C or silicon nitride ceramics.
Environmental usage requirements:
- For harsh temperature environments (such as extreme temperature changes), you can consider using titanium aluminum or silicon nitride ceramics.
- In multiple impact scenarios, we recommend using more resilient silicon nitride or zirconia ceramics.
- In normal environments, you can choose cost-effective silicon carbide or alumina ceramics.
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