In the current market, due to a series of effects such as raw materials and market fluctuations, the price of structural adhesives has continued to rise. From years ago to the present, various manufacturers have adjusted their prices many times, and end users have also fallen into a bitter battle. So, as a popular construction adhesive product, there are several major categories of structural adhesives, and what are their advantages and disadvantages?

　　Judging from the comparison of the substrates used, there are mainly 7 categories, and their performance, parameters, quality, elasticity, and pressure are different. Understanding the following together will help you make better choices.

　　1, epoxy structural adhesive

　　Relatively low elongation, good high temperature resistance-still maintain chemical stability at 121 ℃ or even 204 ℃, very good water resistance, good adhesion to porous substrates; most materials have good adhesion, But the surface should be very clean.

　　2, polyurethane structural adhesive

　　Very high elongation (>100%) can be obtained, and the properties of structural rubber are maintained. The bonding properties of thermoplastic and thermosetting plastics are excellent, and the untreated metal cannot be permanently bonded. Therefore, the bonding of metal plates is usually carried out in advance Aluminum honeycomb bonding rubber like grinding treatment. The tensile shear strength of the metal plate after grinding is increased by 10-20%, and it can work at a temperature below 120.

　　3, anaerobic adhesive structural adhesive

　　Simple operation, easy storage, easy to stop flow operation, non-flammable and explosive, low hazard, no pollution. It has a wide range of uses, such as sealing, locking, holding, bonding, plugging, etc., all can be stored stably, and the glue has a long storage period.

　　4, pressure sensitive adhesive

　　Hot melt adhesive is a combination of hot melt and adhesive characteristics, solvent-free, pollution-free and easy to use. Coating in the molten state, applying light finger pressure after cooling and solidification, can play a bonding role, and has a wide range of applications.

　　5. Acrylic structural adhesive

　　It cures quickly and has high strength. It can be initially fixed in about 5 minutes. It can reach 80% strength after 30 minutes and reach greater strength after 24 hours. It is an excellent acid and alkaline water and oil medium with better high temperature resistance. The adhesion between metal objects is strong, the impact resistance is better than epoxy resin, and the heat and cold resistance is strong.

　　6, silicone structural adhesive

　　As a "member" for the connection and load transfer between the curtain wall glass and the backing aluminum frame, the structural adhesive must have a relatively high tensile, shear strength, repeated tension, compression, and peel bonding strength. A high elastic modulus is required to maintain the basic shape of the rubber layer even under high positive and negative stresses, and prevent the glass from breaking due to excessive deformation.

　　From the above seven main categories, it can be seen that for different substrates, the corresponding products are different, and the development of structural adhesives has also been proven. In order to adapt to more and more product environments in the future, product upgrades are being promoted. Our company mainly deals in products such as sealant, glass glue, silicone glue, structural glue, weatherproof glue, waterproofing agent, etc. You are welcome to contact us for purchase.