Non-porous pepper balls mean that the surface of the pepper balls is smooth, and the surface of the pepper balls has no holes for filling pepper powder. Generally speaking, the pepper balls are ground and polished pepper balls.

There are two kinds of production of non-porous pepper balls: one is produced by ultrasonic manufacturing technology. This pepper ball is made by filling the plastic shells of the two hemispheres with pepper powder, snapping them together, and then performing ultrasonic welding. Although there is no hole, there is a lot of wind at the welded seam, and the strength of the welded connection is not high, and it is easy to burst in the pepper ball launcher, causing a safety hazard.

Another production technology of non-porous pepper balls is to use laser welding technology. This pepper ball is not filled with pepper powder during laser welding. After welding, the pepper balls are filled with powder by using the small holes on the shell. After filling, it is sealed with a special plug, and then ground by a special grinding ball machine, so that the precision of the produced pepper balls can reach ±0.03mm, and the strength of the pepper balls is also very high, and there will never be pepper balls in the The phenomenon of popping in the transmitter occurs, so the laser-welded pepper balls are also called safety pepper balls.