Need information installing wing window glass in channel
	
	
		I am building a 37 Cadillac street rod for my neighbor and friend.  I have painted the car and am letting him install the rear quarter glass and wing windows.  I bought most of the rubber from Steele Rubber.  They sent a roll of material that is supposed to be cut to length and glued in the channel before installing/pressing in the glass.  I think they called it mohair.
Is there something better to use on installing the wing window glass in the channel?  I thought about using some sort of rubberized caulking or RTV.  Problem is with some of the sealers it can cause rust.  I want to be able to remove the windows should they ever get damaged.
Many thanks,