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"Parkit" is an epoxy adhesive that can cure simply by being exposed to light or ultraviolet rays. It can cure within 30 minutes even at a depth of 10 cm, and since there is no need for heating, post-baking is also unnecessary. This reduces the labor and time required for work. It is also characterized by its wide range of applications, including adhesion, coating, insulation materials, and lens materials. 【Features】 ■ Cures only with light exposure ■ No heat curing occurs ■ Available in visible light / UV curing types ■ Can be cured with laser light or LED lights (visible light type) *For more details, please download the catalog or contact us.

The conventional representative temporary adhesives involve heating and dissolving low melting point hot melt resins, such as wax or rosin, to bond them to the substrate, followed by processing after cooling. During peeling, the resin is re-melted by heating and removed, while the resin remaining on the substrate is cleaned using washing solvents such as warm water or alkaline solutions. Another common method involves using a cleaning solvent to dissolve and peel off temporary adhesives that have been cured by UV or heat. The new type developed by our company is a temporary adhesive that, after bonding the substrate through UV curing, incorporates a thermal history of approximately 200°C for 1 to 10 minutes, allowing for a decrease in adhesive strength at room temperature and enabling peeling. Unlike thermoplastic resins, this adhesive's strength decreases due to thermal history, allowing it to withstand heat environments of around 120°C for 1 hour or 160°C for about 10 minutes. *For more details, please download the catalog or contact us.*

It is suitable for applications where positional misalignment of lenses, holders, fine optical components, sensors, fibers, etc., is a concern. Liquid-curable resins shrink in volume when they change from liquid to solid during the curing reaction. This is called curing shrinkage, and in precision bonding, it can cause issues such as optical axis misalignment and positional displacement. Generally, the curing shrinkage rate of epoxy resins is about 3-5%, and even types containing inorganic fillers have a shrinkage of about 2%. This phenomenon is not limited to epoxy resins; it is also observed in acrylate resins, which typically have a higher shrinkage rate than epoxy, shrinking about 5-10%. The epoxy-based precision adhesive developed by our company contains inorganic fillers and includes types with a curing shrinkage rate below 1%, types with a linear expansion coefficient of 4-7×10^-5, and various curing wavelengths of 300 nm, 360 nm, 405 nm, as well as visible light curing types. *For more details, please download the catalog or contact us.*

PARQIT is a true light-curing resin that starts curing solely with light and fully cures only with light. Among its features, it has a very high hardness and possesses dirt resistance, water repellency, and oil repellency. It is used for hard coatings, anti-fouling coatings, and water/oil repellent coatings, and it also enables the hardening of fine structures transferred using the imprint method. *This resin is a joint development product with Tokyo University of Science.* *For more details, please download the catalog or contact us.*

PARQIT is a true light-curing resin that starts curing solely with light and fully cures only with light. Among them, it is a resin suitable for the production of fine structures. It is widely used as a replica mold for imprinting, and once produced as a replica mold, it can be repeatedly transferred without the need for release agent treatment. *The number of transfers may vary depending on the structure of the transfer object, the properties of the transfer material, and other conditions. *For more details, please download the catalog or contact us.