Masterbond recently developed more than a dozen new types of adhesives, each with its own characteristics. EP17 is a toughened single-component heat-cured epoxy adhesive that can be used in high temperature plastics such as PPO, PPS and nylon. Its use temperature is 149-316°C, and the curing time is 49-177°C. The curing time is 60-90min. Its chemical resistance. Well, the shrinkage is low and it is easy to machine. EP21TDC-2L0 is a high-performance adhesive, seal, coating and packaging system, with high elasticity and excellent toughness, low permeability, high thermal conductivity, room temperature curing, mixed mass or volume ratio of 1:3, operating time 90min (100g). Shore D hardness 36, elongation 50%, tensile strength 7.4MPa, T-type peel strength 2.6kN/m, Al-Al shear strength 6.8MPa, volume resistivity 1012Ωm, thermal conductivity 13W/(m•K ). Due to the fact that there is little heat release during curing, it can be applied to thick parts like thin parts. Another similar product EP21TDC-2AN has an elongation of 31%, a thermal conductivity of 2.6 W/(m•K), a tensile strength exceeding 7.4 MPa, and a peel strength exceeding 2.62 kN/m. Its -185-120°C long-term performance exceeds that of a variety of other flexible compounds, such as polysulfides, for cryogenic applications. The cured product also has good electrical insulation, and the volume resistivity is >1012 Ωm. EP30D-9 is a wear-resistant elastomer, combining the strength of epoxy resin, chemical resistance and flexibility of polyurethane, wear-resistant advantages, can be used for bonding, sealing, casting and packaging. EP30HT is Masterpald's transparent, epoxy product for bonding, casting, coating and potting applications. This product has an optical transparency of more than 97%, physical and mechanical properties, high temperature resistance, moisture resistance and chemical resistance. Operating temperature range is -50-205°C. This epoxy is moderate in viscosity, easy to apply, suitable for potting and pouring. The adhesive has good dimensional stability and the shrinkage after curing is -7.62X10-6m. EP30HT is firmly bonded and resistant to water, oils and most organic solvents. For the same and different materials, including metal, glass, ceramics, wood, vulcanized rubber, and many plastics excellent adhesion, shear strength exceeds 22MPa. The cured adhesive had a volume resistivity of >1017 Ωm, a dielectric strength of 17.6 kV/mm, and a dielectric constant D (1 MHz) of 3.46. The company's polymer system EP37LV-1 is a two-component, low-viscosity, water-resistant, chemical-resistant, low-temperature cure, high-performance epoxy composition developed based on the company's curing technology. This is so long that it can be quickly cured even at a very low room temperature. The tensile strength reaches 57MPa and the pot life at room temperature is 30min. Both components have low viscosities and the final mixing viscosity is about 5 Pa•s (easily mixed at any temperature). Curing begins quickly at room temperature and cures completely within 8-10 hours. The volume resistivity of the system is 1018 Ωm. This product can be soaked in water, dilute acids and alkalis, acetone, toluene and other liquid media for a long period of time. A large amount of aggregates, sand, soil and other materials can be added. Its applications include grouting, smoothing and concrete repair (wet parts) And for marine coatings, floor coating, and alternatives to copper joint fluxes, the bond strength of copper pipe joints exceeds 9.3 MPa. MasterBond has successfully developed a new, highly flexible, two-component epoxy compound, EP40, with excellent shear and peel strength. It is specifically designed for bonding, sealing and casting of engineering plastics and metals. The compound can be easily cured at room temperature, the ratio is not strict, 1:1 (mass or volume ratio)
EP40 has a good heat cycle and mechanical vibration and impact resistance. Excellent electrical insulation (even in long-term exposure to harmful environments). This product has low viscosity, convenient operation, excellent adhesion to many substrates, such as engineering plastics, polycarbonate, acrylic, ABS and steel, aluminum and other metals, and shear and peel strength of polycarbonate. The shear strengths of steel and aluminum were 6.9 MPa and 3.5 kN/m, which were 12.4 MPa and 10.3 MPa, respectively, and the service temperature was -37.7-110°C. EP45HTMed is a two-component adhesive, stable, tough, heat shock resistant, chemical resistant, can withstand 27-260 °C long-term exposure to repeated sterilization, glass transition temperature> 185 °C.
The fast-curing universal adhesive EP51M can be cured in 3 minutes. The operating time is half an hour and the bonding shear strength is >13.8 MPa. EP62-1Med is a specially designed medical two-component adhesive that can withstand steam, ethylene oxide: helium, radiation and chemical sterilization. The EP65HT-1 (10-20g) can be solidified within 3-5min at room temperature and completely cured in a few hours. Supreme3HT-80 is a one-component, high-strength adhesive that cures at 80°C for 30 minutes and has excellent impact, thermal shock, vibration, and stress fatigue crack resistance.
Fosroc Chemical Industries of India has introduced a thixotropic epoxy NitobondPC adhesive for stage construction. In recent years, pre-casting and segmented construction technology for large-span bridge construction in India has become very common. NitobondPC has the following advantages in pre-casting structures: it provides high-strength bonding to pre-cast concrete surfaces, compression and shear stress between the segments are transferred, and in some cases tensile stress.
Muli-Seas Corporation has introduced a low-temperature-cured epoxy preform DC-202LT, a one-component epoxy resin that is solid at room temperature and melts after heating to form a dense sealing layer, preventing dust and moisture. , pools, cosolvents, conformal coatings, etc. It cures at 175°C for 5 minutes, and at 100°C for 2 hours. Suitable for sealing components that cannot withstand high temperature cure, the DC-202LT's fast curing properties allow it to benefit from the need to cure larger scale sealing operations faster.
Huntsman AdvancedMaterias' Aradite 2011 epoxy resin has been used for the assembly of trailers, RVs, etc. It securely bonds aluminum, plywood, and fiberglass-reinforced plastic panels to the sidewall frames of vehicles. From the previous mechanical fastening to high-performance epoxy resin installation, the stability of the vehicle has been improved, and the installation has become more convenient.