The CTP recently met with representatives from Teijin Aramid to discuss combination armor models (stab and ballistic) and the use of their material Microflex® in this type of armor. At this meeting, Teijin Aramid representatives provided the CTP with a letter they are providing to their clients that states, in part:
“Teijin Aramid has recently found evidence that, when vest manufacturers design a combination ballistic and spike protective vest using a Microflex and ballistic fabric construct, certain chemicals present in the spin finish of the ballistic yarns can migrate onto the Microflex corrections fabric. While the migration of the chemicals does not affect the physical structure of the yarns used for Microflex, at least with regard to certain combination vest designs, it appears to lead to a decrease in spike resistance of the Microflex combination vest construct over time.”
At this time, the NIJ CTP has identified all potentially affected combination armor models on the Compliant Product List for NIJ Standard 0115.00 and sent a request to each of the manufacturer’s, asking them to:
1. Identify all combination armor currently listed on the NIJ Compliant Products List (CPL) for stab-resistant body armor. This includes combination armor tested in accordance with the previous version of the NIJ ballistic-resistant body armor standards.
2. Notify the NIJ CTP if they have manufactured any combination armor that could be impacted by this issue, and provide information as to: