The low-frequency hum of the cooling fans was the only sound in the cleanroom, a constant white noise that Arthur had learned to tune out over his twenty years at the facility. He stood before the workbench, the sterile light gleaming off the surface, holding a circuit board that represented six months of failed experiments.
He applied the 1A20 with a steady hand, watching as it flowed over the complex topography of the board. It didn't bubble. It didn't clump. It seemed to seek out the spaces between the chips and the resistors, settling into a smooth, uniform film. It was satisfying in a way that only a perfectionist engineer could understand. humiseal 1a20r