Three DELO DELOLUX 202 UV curing lamps are positioned above a circular metal component on a conveyor belt. The component, part of an electric motor stator, has a central hole and radial slots. Purple light emitted from the lamps illuminates the component, demonstrating the UV curing process for adhesives in manufacturing.

DELO News

Press Release | May 20, 2019

Light Fixation Revolutionizes Two-Component Adhesives

One feature being introduced to DELO-DUOPOX two-component adhesives is light fixation. By securing components in place within seconds, allowing for immediate subsequent processing, this technology can vastly expedite production processes while streamlining logistics and promoting cost-effectiveness.

DELO-DUOPOX adhesives with light fixation provide very good strength even when exposed to high temperatures and humidity, achieving tensile shear strengths of up to 28 MPa on aluminum and maintaining this value. Even during ageing simulations required by the automotive industry, it maintains this value after 500 hours' storage at 85 °C and 85% relative air humidity or at 150 °C. As such, it can be used to structurally bond rare earth magnets in electric motors, for example. And with low outgassing and shrinkage, the product is even suitable for optoelectronics applications in cameras.

Thanks to light fixation for two-component epoxy resins, users benefit from faster, less complex production processes and simplified logistics.

Enhanced production efficiency through light fixation

Two-component adhesives with light fixation provide unprecedented speeds for their class. They secure components against slipping in mere seconds so that the entire assembly can immediately begin processing. After an irradiation time of only 5 seconds at an intensity of 1000 mW/cm², a fixing strength of 1 N/mm² is achieved.

Final curing, including shadowed areas, is the same as with regular two-component products at room temperature, or can be sped up to cure after 60 minutes at 80 °C. Final curing at ambient temperatures is likely more beneficial to most users as, by drastically reducing cycle times and increasing throughput rates, it saves them investment and energy costs for heat curing, not to mention space on the production floor. Since dispensing, joining, and light fixation take less than a minute, the next step can begin much earlier than after the usual 15–90 minutes.

In addition, its new hybrid chemistry remarkably simplifies logistics for users as products do not need to be transported and stored in a cooled state. A storage life of 12 months enhances production flexibility and enables the use of larger—thus more cost-effective—containers.

Three DELO DELOLUX 202 UV curing lamps are positioned above a circular metal component on a conveyor belt. The component, part of an electric motor stator, has a central hole and radial slots. Purple light emitted from the lamps illuminates the component, demonstrating the UV curing process for adhesives in manufacturing.

The light fixation of 2C adhesives shortens production processes from one hour to just a few seconds, for example when bonding of magnets in electric motors.

Revolutionary developments in adhesive technology

This new development is nothing short of a revolution. It combines the benefits of light curing with the strengths of two-component products. In the future, all users will need is a mixing system and lamps. Ovens, energy, and space on the shop floor can be saved, not to mention a huge amount of time.
Dr. Karl Bitzer, Managing Director at DELO

Two-component adhesives are well-known for their good strength and reliability at room temperature, their media resistance, and easy transport. In the case of many high-volume applications, the time it once took before reaching initial strength was deemed a major disadvantage—that is until now. This is only the beginning of light fixation in DELO’s two-component adhesives, with the development of several more products underway.

Are you interested in our two-component adhesive solutions or are seeking a product tailored to your application? Take advantage of our free project consultation!

About DELO

DELO is a leading provider of high-tech adhesives. For over 25 years, we have offered solutions for the automotive, electronics, and semiconductor industries. Our innovative technologies set industry standards. Companies like Bosch, Huawei, and Siemens rely on DELO for superior adhesive technologies.

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