If the frame has any rust, I would recommend bead/sand blasting. I twice stripped/ sanded a frame that had rust showing through and both times, over a period of a year or two, the rust came back. When I had it bead blasted, no rust problem ever again.
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Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1