The video shows the process of making a Sealed Unit (two or three connected panes of glass) at "Pioneer Window & Door Mfg. Ltd.".
1. The glass is cut and washed.
2. The superspacer used to connect the panes of glass is applied.
3. Sealed unit is filled with argon gas to make it energy efficient and hot melt butyl sealant is applied to seal the edges.
4. Now the completed sealed unit is ready for delivery or further "window" processing.
