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Old 09-04-2019, 12:11 PM   #1
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Recommended adhesive for gluing glass to aluminum frames?

I have to replace one cracked (laminated) pane. Prefer not to buy a large cartridge if possible. Small squeeze tube would be most economical (I think). Anybody done this?
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Old 09-04-2019, 12:13 PM   #2
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Silicone, clear works well...
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Old 09-04-2019, 12:35 PM   #3
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For glass adhesive, I’d use a polyurethane designed for glass. We replaced two windows on Hobo that don’t have interior frames and they haven’t leaked after 4 years. Silicone is a good gasket material but I’m not sure I’d use it as an adhesive.

As far as a small tube? 3M glass adhesive is about $15 for a 10.5 oz tube.
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Old 09-05-2019, 08:44 AM   #4
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Dowsil 995

Construction adhesive sealant. Works great with the difference in expansion and contraction rates between the two materials.
I use it when I want to seal things once. The first time.
It holds glass in high rise buildings.
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Old 09-05-2019, 09:19 AM   #5
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Thanks, everyone.

By way of background I had caused the crack when I installed a screw for the window screen frame into the perimeter frame and the very tip of the screw contacted the glass. I heard a pop and then saw the crack migrating up the (outer) laminate of the glass

The cracked window is actually a sliding pane that moves behind a fixed pane when it's open. There's about an inch of overlap when it's closed, so I was forced to remove the fixed pane to get at the cracked slider. Last thing I wanted to do was pull the entire frame from the opening in the hull. I cut out the fixed pane yesterday using a long, thin, flexible razor type blade that's part of a Harbor Freight hobby carving kit. No way to get behind the overlap with anything conventional. The original bonding material looks like an elastomer.

I appreciate the advice.
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