Often, many are faced with the problem of urgent local sealing, which is necessary to protect against moisture and dust. There are many different types of sealing materials, butyl sealant is one of them. Easy availability and low cost, unlike other products, have made this type widespread.
What is butyl sealant
Sealants made on the basis of bituminous compounds are widely used. Butyl sealants consist of hydrocarbons and their sulfurous, oxygen-containing derivatives, as well as metal and nitrogen-containing compounds. The initial development of this sealant was made in the mid-60s of the last century. In the future, the manufacturing process was improved, as were the machines for applying it to any surface and storage containers.
Butyl sealant will later find its greatest use in the production of double-glazed windows. For him it willdeveloped a special kind of special equipment, which will be called butyl extruders. It is also sometimes used as a sealant for headlights. Strong demand has pushed manufacturers to increase the types and quantities of butyl in the sealant market.
Production
The production of butyl sealants has long been no secret and is quite simple compared to the production of other types, for example, polysulfide or silicone. The composition of butyl includes components such as butyl rubbers and plasticizers, as well as special technological additives, it is the latter that are the components that manufacturers make in certain proportions.
The plasticizer in the composition of butyl sealant plays one of the main roles, it is produced from industrial oils and paraffin-containing resins. The most important role of such a component is adhesion, that is, the ability of a material to bond to each other for a long time. Over time, plasticizers lose their properties and depressurization in the manufactured product is possible. Sometimes, when drivers use butyl headlight sealant, it peels off the glued parts.
The type of finished butyl depends on its consumption. If butyl sealant is used for windows, it is mainly produced in the form of a cylindrical can with a mass of 7 kg, sometimes 2.5 kg. This barrel is then dipped into a butyl extruder where it is applied to an aluminum frame under high temperature and air pressure. After the frame is glued onglass blanks for the production of double-glazed windows.
Key Features
Butyl is a non-hardening, single-component sealant with excellent adhesion to glass, aluminum and sheet steel. The main indicator is the level of adhesion of 93-95% for glass, for metal it is slightly lower. The main and main role for butyl is the ability to maintain tightness in a double-glazed window and for other materials, to prevent the penetration of moisture and dust into a product where butyl is used.
Butyl sealant is made mainly in black, it depends on the main components. It is applied using special machines - extruders. In extruders, butyl is heated to a temperature of 110 to 150 ° C, while it softens and, under pressure, is easily applied to the surface to be glued. There are special GOSTs for the use of this sealant.
Application
The use of material has no definite boundaries. Butyl window sealant is the main application, it is applied to the edge of the frame and serves as the main sealing layer. The butyl layer is waterproof and prevents gas from escaping from the chamber.
Sometimes it is used to glue destroyed surfaces. Butyl headlight sealant is often used by mechanics and ordinary drivers, this type is easy to use and inexpensive. Mostthe main thing to remember when using it is the direct action of ultraviolet radiation, moisture and high temperatures. These factors adversely affect the properties of butyl, depressurization of glued surfaces is possible.
So, the considered hermetic agent is extremely important to have on hand, as it has universal properties. Putting it into practice is quite simple.
