Industrial and construction adhesives

There are types of adhesives for different uses in the industry. Adhesives that are produced with different materials and have the ability to adhere to different materials. Various types of construction glue are used to stick materials together or to catch various leaks. We all use different types of glue in our daily life, such as liquid glue, stone glue, electric glue, welding glue, 123 glue, etc.

Epoxides are the best known construction adhesives and are the most widely used. Wood glue sticks well to metals, glass, concrete, ceramics and hard plastics and is resistant to oils, water, dilute acids, bases and most solvents. Therefore, they are more useful in gluing vinyl flooring in services and wet places and to metal surfaces. The best known construction adhesives are epoxides and are the most widely used, the most commonly used epoxy resin being made by reacting the sodium salt of bisphenol A with epichlorohydrin. Aliphatic and aromatic amines are also used as hardening agents. These adhesives easily stick to wood, concrete, glass, metals, ceramics and hard plastics and are very resistant to water, dilute acids, oils. Therefore, they are widely used for gluing vinyl flooring in wet places, services and to metal surfaces, twin glues are the most common type of epoxies that can be found in many homes and industries.

When phenol reacts with an excess amount of formaldehyde under basic conditions in aqueous solution, the product known as resol and oligomeric containing phenols bridged by heterochromylene on benzene rings is obtained. To prevent the formation of vapor-filled voids, phenolic adhesive joints under pressure are usually hardened between heated steel plates by a hydraulic press. Due to the brittle nature of phenolics, polymers such as polyvinyl formal, polyvinyl butyral, epoxides and nitrile rubber are added to make them harder. This liquid glue is based on synthetic phenolic resin and works by heating. Suitable for connecting friction material to brake and clutch.

Structural adhesives containing acrylic monomers harden by free radical addition at ambient temperature.

Anaerobic adhesives harden in the absence of oxygen, which is an inhibitor of polymerization. These adhesives are often based on dimethacrylates of polyethylene glycol. The use of these adhesives is often in the connection of gears, thread locking, reinforcing cylindrical connections and for burglary.

Polysulfides were initially used as anti-theft and an important application is the anti-theft of the edges of double mirrors. Both to hold the units together and create a barrier against moisture penetration. They are prepared by bis(2-chloroethyl formal) with sodium polysulfide and mineral fillers are used to reduce the price. Phthalates and silane coupling reagents are used as softeners, and their hardening agents include manganese dioxide and chromate.

One-component silicone adhesives are often known as RTV adhesives and consist of polydimethylsiloxane (PDMS) with molecular weights in the range of 300-1600 with acetate, ketoxime, or ether end groups. These groups are hydrolyzed by atmospheric moisture, forming hydroxyl groups, which are later condensed by removing water. Silicone adhesives are soft and desirable and have good environmental and chemical resistance. These adhesives are known as the best coating for use in the bathroom. This glue is known as aquarium glue in the Iranian market. Due to the many uses of aquarium glue, it can be found in almost all homes. Its main uses:

Probably the most common and popular use for silicone glue (aquarium glue) is in repair, renovation and home construction projects. It is especially used to fill and seal cracks in joints and cracks in sinks and toilets. Water-resistant silicone glue (aquarium glue) is regularly used to fill holes and clean any cracks and seams. You can also use it to seal surfaces such as ceramic floors.

Aquarium glue is an excellent sealant and sealant that has the ability and ability of most common glues, it is flexible and durable, it has strong bonding properties that can be applied to almost any surface. , including plastic, metal and glass. One of the most common cases is the use of silicone sealants to stick and stabilize mirrors in bathrooms and toilets.

Silicone sealants are used in different parts of the car. The most important function of silicone sealants in the automotive industry is to protect gaskets under pressure and high temperature in the car engine, etc. (Thermal silicone)

Glass sheets can be easily connected on a wide surface using aquarium glue (silicone sealants). Aquarium glue easily resists water and fart and will create a strong, long-lasting connection between the glasses.

These adhesives fill gaps that make them suitable for fixing polystyrene false ceiling tiles and plaster and plaster planting. You can also use them on floor tiles. Like rubber resin adhesives, they allow a certain amount of movement without cracking.

These glues are pressurized in spray cans, these glues fill holes in wood, etc., because the foam expands when it is sprayed. If you need to remove them, you need to prepare a special solvent.

These fast-acting adhesives adhere to a variety of small household and industrial items, including metals, glass, ceramics, and plastics. But be careful when using them, because the skin will stick to other materials and surfaces, and if you accidentally stick the wrong things, you'll need to use super special removers to get them off. Super glues are offered in the Iranian market under the name of glue 123 along with activator spray.

These types of adhesives are used for sealing and gluing PVC-u high pressure pipes. Due to their specific type of solvent, these adhesives dissolve some of the surface of the PVC pipe and then after 8 24 hours creates a state like cold boiling of plastic in it.