Structural epoxy adhesives are classified into two systems: one component and two component. One component systems are heat curing. Epoxy adhesives coming from this system cures at 177 C. They are efficient metal adhesions and have excellent resistance to chemical corrosion and environmental changes. One component epoxy adhesives also provide excellent sealing properties. They can be used as alternatives for welding and rivets and require cold storage for longer shelf life. Two component systems, on the other hand, cure at room temperature. They can be found in almost all market segments. The work life of epoxy adhesives coming from this system can vary from a few minutes to several hours. The longer it cures, the stronger the adhesives will be. Two component epoxy adhesives are suitable for bonding metal, ceramics, glass, wood products and to some extent for synthetic materials. They have long-term stability and have high resistance to physical and chemical influences. Two component epoxy adhesives are not as heat resistant like those from one component systems. They could only withstand temperatures from 95 C to 200 C.
There are many advantages in using structural epoxy adhesives.
- They simplify construction through strength increase for load transmissions.
- They are cost efficient. Epoxy adhesives saves production cost because they do not need to use screw, rivets or welding.
- They allow the most varied substrate combinations.
- They prevent material fatigue and failure through unchanging load transmissions.
Structural epoxy adhesives can be suitable to a wide range of applications. Most notable is for adhesion itself. People commonly use this component for repairs jobs such as house repairs, shoe repairs, etc. They are also widely used in construction because they capable of creating resilient bonds. Epoxy adhesives are also suitable as metal or wood fillers. They can seal cracks and dents effectively and can also repel moisture formation as they waterproof.
Another use for epoxy adhesives is ceramic and fiberglass repair. It can glue practically anything from vases to windows. Since they have high strength, they are also useful in fiberglass, stone and concrete repair. The type of epoxy adhesive varies depending on what it will be used for. Epoxy adhesives can also be used in jewelry making and metal bonding. It is one of the best choices for metal bonding due it’s strong bonding, chemical and heat resistance.
Depending on the application, epoxy adhesives can be very useful and efficient.