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DELO’s New Dual-curing Adhesives Reach Full Strength at Only 60°C

Published on 2016-03-30. Author : SpecialChem

DELO has developed new dual-curing adhesives that reach full strength at only 60 °C after prefixation by light. The new range is completed by adhesives curing in a single step at low temperatures, three times faster than previous products. These epoxy resin-based adhesives are mainly used in electronics.

Dual-Curing Adhesives – Full Strength at Only 60 °C
Fig. 1: Dual-Curing Adhesives – Full Strength at Only 60 °C

The new dual-curing adhesives from DELO can be prefixed after only half a second of exposure to light. Prefixing is particularly advantageous in the case of production lines, since, after dispensing and fixation, the component will be directly transferred to the next step of the process chain. This guarantees reproducibility and fast production, avoiding incidents like the slipping of individual components. Products of the DUALBOND family also feature excellent adhesion to LCP and allow adjustment of the adhesive properties ranging from flexible to hard (elongation at tear up to 70%).

Fast, faster, the fastest – very low temperature curing

The low curing temperature of these new adhesives reduces the thermal stress between the materials, thus limiting the stress on the component. In addition to that, they allow processing of temperature-sensitive substrates without difficulty: higher temperatures would only damage the sensitive components.

For purely low-temperature-curing adhesives, it only takes 30 minutes and a temperature of 60 °C to achieve their final strength. This makes them the fastest of their kind. So far, standard products have generally taken 90 minutes at the same temperature to achieve full strength. And still they are able to maintain their favorable properties such as their good adhesion to plastics like LCP, PA, and PPS or their flexibility on the component.

About DELO


DELO is a leading manufacturer of industrial adhesives with its headquarters in Windach near Munich, Germany, and subsidiaries in the USA, China and Singapore. In the fiscal year 2015, 450 employees generated sales revenues of EUR 74 million – EUR 80 million are anticipated for 2016. The company supplies customized special adhesives and associated technology for high-tech industries such as automotive, aviation, optoelectronics, and electronics. DELO’s customers include Bosch, Daimler, Infineon, Osram, Siemens and Sony. DELO won the German Industry’s Innovation Award 2014.

Source: DELO

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