Replacing old brittle window glazing

A handy person from Hawthorne says:
Hi....I got my friend Jill to buy the replacement snap-in vinyl glazing you recommended to's here. Thanks. :-)

Now, the tough part: I cannot remove the windows I need to reglaze from their frames and, well, I can live with that--what's killing me is the old brittle glazing that I'm trying to replace: it's breaking and NOT coming out easily--took me 40 minutes to pull 23-1/2" (which is how I found out the glazing you recommended DOES fit. Yay)

Do you have any tips on how to get the old @!&%?+* crap out?

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Tom from SWISCO responded:
Hey, Lori, thanks for posting! I'm glad our glazing worked for you. I think you might want to take a look at our tutorial video below. This details the best way to remove your old window glazing.
A quick learner from Port Charlotte, fl says:
My Alcan trim is also brittle on all of my windows. My question here is, do I have to replace the window glass, as well, when repairing/replacing the old alcan glaze, as demonstrated in the video? The glass is fine. It's the glaze that's brittle from sun and weather waring.
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Dave Sr. from SWISCO responded:
No, you don't have to replace the glass, but you could damage the glass when switching the glazing out. Be very careful when removing old snap glaze. I recommend using a hair dryer or heat gun to loosen it up, but make sure it's not too hot as it could also damage the glass.
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