Shop floors can get messy but that is because work is being done. In the end, you still need to track work orders and employee time , even in a hostile environment. Consider barcodes, or even RFID for time tracking in such places.
RFID is completely solid-state, and immune to dust and chemicals. just swipe and go. Nothing bothers RFID… not dust, dirt, grease and grime, grinding dust, or oils. It’s really the best choice for hostile shop floors.
Here’s a little video to inspire and remind you to try Standard Time® with RFID or barcodes.