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My uncle swore by using a heat gun on a stuck windshield, and I just tried it on a '98 Civic.
He told me to run a cheap heat gun along the urethane for a full minute before pulling the glass. I did it on a job last Thursday, and the whole shield popped out clean with zero damage to the pinch weld. Another glazier I work with says that's asking for trouble with the heat stressing the glass, and you should only use cold knives and piano wire. Who's right here? Has anyone else had a good or bad result with direct heat on old adhesive?
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ray_foster671mo ago
Yeah, your uncle knew what he was talking about. I've used a heat gun on a dozen old Hondas and never had a glass crack. That other guy is just scared of a little warmth.
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haydengreen22d agoMost Upvoted
Scared of warmth is missing the real point. It's not about the glass cracking, it's about the sealant underneath cooking into a hard, brittle mess. You can get the glass out fine with heat, but then you're left scraping this rock-hard gunk off the pinch weld for hours. That's the part that makes me avoid the heat gun unless I'm really stuck.
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