The GEW Laboratory Unit provides a well-specified, stand-alone UV curing unit for laboratory or low volume production environments and its capability can be extended to include inert gas UV curing with GEW’s cost-effective sample holder. The holder, constructed from machined aluminium and quartz glass, enables the testing of UV inks, varnishes and silicone coatings on board, sheet and film under an inert atmosphere of nitrogen.
The sample is placed in the sample tray where it is secured by clips. The lid with its quartz window is clamped onto the sample tray by two ¼ turn quick-release fasteners and a gastight seal is achieved. Oxygen is then purged from the curing zone by the injection of inert gas (typically nitrogen) and the entire assembly is passed through the Laboratory Unit to complete the test.
This method allows the lowest cost solution without the need of an expensive liquid nitrogen supply.
Figure 1. GEW sample holder
Figure 2. GEW laboratory Unit