A little bit about gluing glass - what is special about?
The process of joining glass parts or a combination of glass and other materials is quite complicated. It is necessary to provide quality preliminary preparation of joint surfaces, reliable fixation of parts, their exact installation. Depending on the type of glue used, a full external action is required on all docking sites.
Glass gluing is carried out in various technological processes. For a long time already such operations are used in the process of assembling cars, many household appliances, in electronics manufacturing technologies. The quality of the connection in this case, of course, depends on the correctness of the choice of glue, but in no less, and perhaps more, from the preparation of surfaces to the joint.
The selection takes into account the operating conditions of the glue joint site, the applied mechanical, chemical and other influences. For example, the already mentioned technology of windshield insertion, there is used glue-sealant for glass.
Increasing productivity by reducing the time of the operation, gluing allows a qualitative improvement of many body parameters of the future car. There is increased tightness of the connection, and improved aerodynamics due to the exact correspondence of the connection point, and even the increasing rigidity of the body as a whole.
How do I clean the glass before gluing?
The operation of inserting the front or rear window can be easily carried out even in the home workshop. Of course, it requires thoroughness, but due to the fact that there is glue in the sales network for gluing glass and other necessary components, it can be done independently.
It is very important to pre-prepare when glazing is connected. First of all, this refers to the degreasing of the joint. Removal of contaminants that have different oils in their composition must be done even for work with the most modern adhesive compositions, the manufacturers of which declare the possibility of fixation by simple application.
Most likely, this is just such an advertising move, increasing the attractiveness of the product. In fact, the reduction of all kinds of pollution increases the strength of the joint many times and contributes to its long-term operation. From what kind of glue will be used, it depends, than to degrease the glass.
For this you can apply alcohol, gasoline, kerosene and their solutions. Perhaps the most universal means of degreasing can be called ordinary acetone. But various alkaline and acid solutions can be used. In any case, when gluing glass, it is necessary to remember the increased danger of such work and to observe safety measures, work in an open space or with practical exhaust ventilation.
In addition, when working with already used glass compounds, before it is degreased, it is necessary to carefully remove the residues that give the former glue for gluing glass. After prolonged use, the residues may contain small dust particles, allergens, harmful to the respiratory system and capable of causing an inflammation reaction.
How to properly glue the glass?
In the case of work on the gluing of automotive glass, you must comply with the above requirements and the sequence of operations. So, to begin with, you should conduct a set of actions for the careful extraction of old glass. For what is carefully cut the old seam( fit vibronozh, faceted string or scalpel).It is very important to remember the possibility of cracks and destruction of the material( use glasses and gloves).
After separation of the old glass for easier removal it is possible to use vacuum suckers. For greater security, it is better to carry out these works together with an assistant. Then a layer of old glue is removed along the perimeter. It is advisable not to damage the color of the metal body.
If necessary, after removing the old seam and degreasing the damaged area, the area is painted. If this is not done, the metal will corrode. After drying the paint, the joint is degreased with a special compound.
Adhesive is applied to the junction area, prepared according to the manufacturer's instructions, do not forget about the windshield gum. If necessary, it is better to change it. Most of these glues already after ten minutes form a surface film, which hinders the quality connection. Therefore, after applying the composition evenly( the recommended thickness is 1 cm), it is necessary to accurately install the glass.
This is another reason for attracting an assistant. The installed glass is securely fixed with an adhesive tape capable of withstanding its weight. The final hardening of the composition can last up to 20 hours. At this time, it is better to park the car in a parking lot with a temperature of at least 15 ° C.Riding and skewing of the body are undesirable.
Working with home glass does not differ much in principle from the above, only the glass is not inserted into the body of the car. Do not forget about precautions that will protect the material from falling, skewing, etc.