Electrolube has developed a new generation of conformal coating materials with two components that offer greater corrosion protection. The 2K coatings combine the protective effect of cast resins with the ease of applying a protective layer. They have been tested in harsh conditions such as thermal shock, salt spray, condensation and mixed gas flow (MFG) with very good results.
In a 'how-to' video, Electrolube demonstrates how to calibrate equipment after installing the valve for the 2K series. When the 2K material is in the static mixer, the reaction agent starts curing. Regular cleaning at each stage is important to ensure that the material is flushed through the machine to achieve the desired coating effect.
Calibration is supported by machine suppliers. To this end, Electrolube cooperates with manufacturers such as PVA, Mycronic and Nordson Asymtek in the production of valves so that they are suitable for 2K materials. The main difference between 2K and single component applicators is the dual pumps with progressive cavity for the static mixer, plus software changes for 'coating only', 'reaction agent only' or mixed material options. A tab provides information on mixing ratio, flow rate and temperature. Unlike traditional coatings, the flow rate should be controlled by software rather than adjusted by micrometer.
Electrolube, a division of H.K. Wentworth Limited, is a manufacturer of specialty chemicals for the electronics and automotive manufacturing industries, with ISO14001 compliant products including conformal coatings, contact lubricants, thermal management materials, cleaning solutions and potting compounds.
