Epoxy Resin Adhesive

Epoxy adhesive is a thermosetting adhesive consisting of epoxy resin or polymer and hardener.

How are epoxy adhesives formed?
Epoxies are formed by polymerizing a mixture of two compounds: resin and hardener. These two components must be mixed in the correct proportions before being applied to the joined surfaces. Hardening is a chemical process that occurs in this preparation by mixing resin with a specific catalyst. If necessary, filler, hardener, plasticizer, and other additives (such as dye) can be added. The hardener bonds different surfaces creating a strong, durable, and solid bond.

Epoxy adhesives are most commonly available as two-component or one-component adhesives. They may have different compositions. Epoxy resin-based adhesives are pre-catalyzed and require moderate heat for hardening. On the other hand, two-component epoxy adhesive differs in that catalysis occurs at room temperature and can be accelerated by heat, promoting additional cross-linking and enhancing the properties of the preparation. One-component epoxy adhesives hardened by heat are often in the form of a paste.

Two-component epoxy adhesive is suitable for bonding most surfaces. It is distinguished from one-component adhesive by its exceptional bonding strength. Two-component adhesives are also available in two different versions: rigid or flexible.

Should the surface be prepared before bonding? The adhesive should be applied to a dry and clean surface. Non-porous surfaces (e.g., metal) should be degreased and dried. The surface can also be sanded to provide better adhesion (e.g., with sandpaper). The adhesive should not be subjected to a strength test before completing the full hardening process.

Epoxy adhesives bond various materials such as rubber (special version of the adhesive), metal, wood, glass, plastic, concrete, composites, and many plastics. They are a type of structural adhesives and industrial adhesives that can be cured at room temperature, elevated temperature, or under UV radiation, depending on the hardener used. Check the advantages and properties of universal epoxy adhesives, here they are:

• high mechanical strength
• moisture-resistant
• adhesion - high bonding strength
• exceptional chemical and thermal resistance
• waterproof
• waterproof joints resistant to saltwater
• remarkable flexibility
• high tensile strength (crack and tear resistance)
• shock and vibration-resistant bond
• ideal for applications requiring high stress (e.g., intense mechanical shocks)
• weather-resistant
• suitable for filling gaps
• provide excellent electrical insulation
• protect electronic systems
• high peel strength
• solvent-free
• possibility of modifying two-component epoxy resins, e.g., using pigments or other fillers
• varying curing times (e.g., medium set time)

In our store, you will find a wide selection of epoxy adhesives. We also offer a fast-curing cold epoxy adhesive that works perfectly for bonding various types of substrates, including steel, aluminum, and galvanized iron.

Epoxy adhesive can be used for sealing, coating, encapsulating in various industries (e.g., electronics, aviation). It will also work perfectly for assembly, repairs (e.g., body parts, ceramics, furniture), and applications in industries such as maritime, aviation, railway, home appliances, automotive, electronics, electrical, water and sewage systems, HVAC systems, production, and construction.

Applications of Epoxy Adhesives
Two-component epoxy adhesives have a wide range of applications due to their versatility and durability. They are ideal for tasks requiring a durable and strong bond of diverse materials such as metals, wood, ceramics, or plastics. Due to their resistance to external factors such as moisture, chemicals, or high temperatures, these adhesives are often chosen for industrial, structural applications, as well as in crafts and modeling.

If you need advice regarding our products, feel free to contact us.

Bonding Time

Two-component adhesives are designed to bond components together based on the available bonding time. Bonding different materials requires different bonding times. Thus, we differentiate between various bonding times for epoxy adhesives:

• 60 seconds
• 5 minutes
• 22 minutes
• 60 minutes