There have been some problems with arrant flashes from the beginning. Translucent coating is commonly used in this technology but the problem is that this coating is actually porous material. It is not such a big problem but the edges must be recoated from time to time. Because of a lot of the windows cuts, maintenance is a bit expensive on the NASDAQ sign. Big advantage is that Lumacom is using different non porous material. I think Lumacom can take care about this problem. Back to work
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