UV-cured coatings debut in Nuremberg

Louise Smyth

Seven new UV cure conformal coating products will be launched for the first time in Europe at the SMTConnect show in Nuremberg, hosted at the Messe from 07-09 May 2019. Electrolube developed the new UVCL range to meet the various requirements of electronics, LED and automotive manufacturers, with the additional benefit of rapidly increasing production time and offering even higher levels of performance.

The range is solvent-free, VOC-free and provides resistance to cracking during thermal shock cycling. The main benefit of the coatings is that boards can be handled immediately, with full cure guaranteed within 6-12 hours due to the chemical secondary cure mechanism. In comparison to existing UV cure systems on the market, the majority require minimum moisture secondary cure times of 8-14+ days, whereas the new UVCL range facilitates tremendous reductions in the amount of Work In Progress.

The range features a single component, medium-low viscosity dual cure coating with secondary moisture cure, for complete cure in shadow areas. Available in 5L packaging, the coating provides a wide operating temperature range and is ready to use for selective spray application.

UVCL-P is the ‘plus’ version of UVCL. It is a transparent, flexible coating which is extremely resistant to thermal shock. The main benefits of are the improved coverage and protection achieved, along with a guaranteed chemical cure in 6 hours thanks to its unique secondary cure mechanism. Selectively applied at 50-150 microns thickness, the plus version will always afford a higher level of condensation protection than UVCL when sprayed at the same thickness. UVCL-P has a higher maximum operating temperature of 150°C and meets the requirements of UL94V-0 at thicknesses below 150 microns and can be cured with either 365nm LED lamps or ‘D’ bulb microwave technology.