Thanks Lenny, I went to that site and got lots of good information.. The windows I have are made of solid vinyl . at the midway section of the bottom edge below the glass is a thin long tabe which normally is used to slide the window up or down. However because of less than adequate ability for same said sash to slide it apparently put to much pressure on that tab and it snapped off, thus, I believe broke the gas seal . since then we have installed the replacement sash , but I want to get a can of that suggest powdered stuff to change how things move in all the windows. less friction means more damage in this case. thanks much for all suggestions coming from this list. Lee
-- Swim at your own risk.
