Window reglazing question
I'm a new homeowner with 60 year old aluminum frame (about 20 or so) single pane windows. The frames and glass are in ok shape but the putty/glazing has deteriorated badly. It is hard, brittle, and flaking... and moderately difficult to remove using a decent quality hand scraper.
My question is this: Can I take most of it off and reglaze over with some quality putty (looking at sarco dual glaze)? or will it fail if I don't remove all the old stuff first?
Thanks for any help!