1965 Dodge Dart Charger

AI have going through Internet in search for the right weam sealer. Does anyone have any ideas what Chrysler used back in the day? What is the best brand to use?

I used Dominion Sure Seal Ltd. Brush On Seam Sealer using a cheap brush and it seemed to match up to what was there (brush strokes). I'll check and see if I got any pics that are worthy.
Roger