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Known worldwide as standard ballistic clay, Roma Plastilina No1 is a homogenous non hardening, oil based modelling clay and is the designated backing material for the testing of ballistic vests to both NIJ & HOSDB standards. The ballistic clay comes in a case of 20 bricks. Each brick measuring 140mm x 63.5mm x 76mm and weighing 2-lbs or 907 grams. Color is gray-green.
The NIJ, HOSDB, SK, ISO and other testing standards from around the world involve firing different types of bullets ranging from 9 mm to .44 Magnums and up to caliber 12/70 shotgun slugs, at body armor placed in front of a tray of ballistic clay, a material that emulates the human body.
Typically these standard tests require vest designs to stop multiple shots at a certain velocity, and the clay must have less than a specified residual cavity depth commonly referred to as “back face signature deformation”. For example, the NIJ specification requires six shots with less than 44 millimeters of "back face signature deformation".
Roman Plastilina No 1 Ballistic Clay is non-toxic, has a very low incidence of reaction, and has no known health hazards associated with handling or use. It has a faint odor similar to wax. If bullet fragments contaminate the material, it can be cleaned by melting and filtering
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