Glass with double-sided armor broke, but it can be easily removed: the films firmly hold the fragments
Glass with double-sided armor broke, but it can be easily removed: the films firmly hold the fragments. Glass with double-sided armor broke, but it can be easily removed: the films firmly hold the fragments.
Aggression in large cities literally rolls over, during dismantling on the spot it goes to both owners and cars. Baseball bats are no wonder in car dealerships on shelves, but try to buy a ball there too! However, a bit is not suitable for checking film films: the force of its impact is a random value, but we need stability and repeatability. Traumatic weapons were rejected because permission was required, but pneumatics was what they needed.
They decided to bring the experiment closer to real conditions, for which they purchased a door from the VAZ-2105 and several glasses. The shelling was carried out from an air pistol MP-564K (a copy of the famous PM). True, there were gnawing doubts: would there be enough three joules of energy (so much of a bullet flying at a speed of about 100 m / s) to just break the tempered glass? Aiming from eight steps, first through an un-glued window. Soft cotton, and Boron stalinite shattered into small fragments. The bullet was found "in the cabin" - so, she, not to mention the fragments, could cause injury to the driver.
In real conditions, “bare” tempered glass will fly apart in the same way and can hurt
In real conditions, “bare” tempered glass will fly apart in the same way and can hurt. In real conditions, “bare” tempered glass will fly apart in the same way and can hurt.
Next is the turn of glass, tinted with a cheap film of an unknown manufacturer (but tested by US) Top Color with a thickness of only 50 microns. Its quality is quite consistent with the price: even when smoothed during tinting, scratches form on the film. If the glass is down, it will quickly be painted over with vertical risks. In addition, as explained to us in the tinting studio, in the sun such a film will burn out and become transparent by next year. But our concern is not about that.
So the same eight steps. The fire! The bullet bounced back, the glass … resisted! Does the film work? We make a control shot from the same distance. Everything, there is a hole and a network of cracks. The bullet went right through (although it lost all its energy), but the fragments can no longer be afraid: the film holds them.
The result of a shot from eight steps on the glass with a cheap film with a thickness of 50 microns
The result of a shot from eight steps on the glass with a cheap film with a thickness of 50 microns. The result of a shot from eight steps on the glass with a cheap film with a thickness of 50 microns.
Further, professional tinting films of various companies - 100 and 200 microns thick - joined our game. These are already pretty scratch resistant and don't fade. But the glass from the bullets is still not protected - they crashed during shots from eight steps, without, however, missing the bullet through.
Here it is necessary to retreat. A feature of tempered glass is the invisible concentration points of stresses that occur during heat treatment. If you get into this, it is much easier to break the glass. So the critical distance in our case is somewhat arbitrary: you never know what point the bullet will hit.
Tint films with a thickness of 100 or 200 microns: they don’t let the bullet through, but the glass is still under replacement
Tint films with a thickness of 100 or 200 microns: they don’t let the bullet through, but the glass is still under replacement. Tint films with a thickness of 100 or 200 microns: they don’t let the bullet through, but the glass is still under replacement.
In the final - a test with a transparent “armor” film: first on glass pasted on one side with a film of 200 microns, then on a film protected on both sides with a thickness of 100 and 200 microns. Special hopes were placed on the latter: plastic should soften the impact of a steel bullet! Alas, the expectations did not materialize: the “armored” glass on one side broke even with the first shot from eight steps, the two-sided “armor” held the defense before the shot from five steps. However, the films themselves withstood, the bullet did not penetrate inside. They say that even a baseball bat doesn’t break through such glass.
Conclusion: do not hope to protect the glass tinted - it will not help. Another thing is “self-defense" and the safety of the borsetok: here the effect will be, if not save and choose a film with a thickness of at least 100 microns.
At the point where the bullets hit the double-sided “armor” there is only a small dent on one side and a protrusion on the other
At the point where the bullets hit the double-sided “armor” there is only a small dent on one side and a protrusion on the other. At the point where the bullets hit the double-sided “armor” there is only a small dent on one side and a protrusion on the other.
