Epoxy and epoxy resin
Our selection includes high-quality general-purpose epoxies, laminating epoxies, infusion epoxies, casting epoxies, epoxy foams, and epoxy adhesives.
Epoxies are two-component systems consisting of resin and hardener, with a precise mixing ratio. The reaction is exothermic, meaning it releases heat. When using epoxies, the temperature should be above 15 °C. Full hardness is typically achieved only after post-curing – some epoxy systems always require post-curing, while others cure fairly well at room temperature. However, optimal strength is always achieved after heat curing.
ADVANTAGES:
- Low shrinkage: Epoxy resins have very low shrinkage during curing. This ensures accurate shape and dimension retention.
– Good adhesion: Epoxy resins adhere well to a wide range of materials such as metal, wood, glass, and ceramics. This makes them versatile adhesives and repair materials.
– High elongation at break and modulus of elasticity: Epoxy resins have excellent mechanical strength. They can bend and stretch without permanent deformation, which is beneficial in many applications.
– Water absorption: Epoxy resins absorb very little water. They provide effective protection against moisture, which is important for example in fiber-reinforced plastic structures.
– Wide working range: Epoxy resins can be used across a wide temperature range. Some systems cure well at room temperature, while others require heat curing.
– Kemiallinen kestävyys: Epoksihartseilla on hyvä kemiallinen kestävyys monia kemikaaleja vastaan. Tämä tekee niistä sopivia monenlaisiin ympäristöihin.
APPLICATIONS:
- Manufacturing of fiber-reinforced plastic parts: Epoxy is used to produce durable structures, castings, molds, and coatings for industrial needs. It is especially well-suited for boat building, machine components, and composite structures.
- Repairs of fiber-reinforced plastics: Epoxy resin is excellent for repairing boats, cars, aircraft, and other composite structures.
- Bonding: Epoxy adhesives can be used to bond a variety of materials, including metal, wood, glass, and ceramic parts.
- Casting molds and mold making: Epoxy resins can be used to make casting molds, for example for jewelry or small object production.
– Artistic projects: Epoxy allows for the creation of transparent layers, making it popular among artists. It can be mixed with colorants to achieve striking effects.
– Surface treatment: Epoxy resins can be used to coat wood, concrete, or metal. They provide protection against moisture, wear, and chemicals.
You can buy epoxy resin from our online store.
Smaller epoxy packages include both resin and hardener (indicated as H+K in the product name), while in larger containers the resin and hardener are sold separately. Hardeners are typically available in different working speeds (e.g. fast, STD = standard, slow, as indicated in the product name). Large packages are available by contacting our office at kevra@kevra.fi or +35896126820.
When working with epoxies, it is important to follow safety instructions, such as protecting the skin and avoiding allergic reactions. Proper waste handling is also essential when using epoxy resins.