The foam gun is a special tool that allows installation work to be carried out with great convenience . In particular, it is able to accurately dose the protective solution, filling it with very inaccessible places. Today there are many different models of foam guns. Their design is quite simple.
The foam mounting gun is a tube with valves at its ends. To make it more convenient to work, the rod is equipped with a special handle and an exhaust valve mechanism, actuated by a trigger.
When choosing a gun, the following criteria must be considered. Firstly, all parts of the tool must be made of metal. Serious companies can carry out some elements from plastic, but in this case it is better to purchase only branded devices. If the gun for foam is made by an unknown company, and even in its design has many plastic parts, then it is better not to buy such a product at all. The choice of such tools is quite wide: Workman, Zubr brands have proven themselves well. These devices, despite the cheapness (about 500 rubles), are able to spray several hundred cylinders.
It is good if the foam gun has a removable design. In this case, it can be disassembled into parts, washed or replaced with a broken or worn assembly. Particular attention must be paid to the quality of the valves in the fixture. However, they can only be checked during operation. Do it as follows. Take the cylinder with acetone and wind it on the gun. After making a few pulls of the trigger (to fill the tube of the gun with acetone), the balloon is removed, and the device is left for several days without action. After that, when pressed, acetone, which has been under pressure all this time, should escape from the exhaust valve.
If this did not happen, and the gas has evaporated these days, and the pressure has been released, then such a foam gun will not perform the mounting function, and it must be taken back to the seller for exchange. It will be inconvenient to work with such a device, it will have to
rinse all the time, even after short breaks. Therefore, when buying a device, you must save a cashier's check.
This tool requires proper care and maintenance. Before starting work, it is recommended to spray the place of application of the substance with water, since moisture is necessary for its hardening. When using foam, it is necessary to take into account its expansion coefficient. Therefore, the cavity must be filled by a quarter. Attach parts that may shift as the foam expands.
A foam gun has another good feature: a wound balloon can remain on the device for a sufficiently long time. At the same time, he is ready to work at any moment. However, do not leave an empty balloon on the gun. It is better to remove it, and blow out the device. If you do not have the right substance at hand, you can rinse the foam gun with pouring acetone, having previously disassembled the device.