Is it heat resistant Phil. Have you tried it on top of a glass tube metal cap? Just curious and thanks for the tip.
Mike
Good question.
I haven't tried it on top of a hot tube but will do that and see what happens.
I do know that the superglues' will simply crystallize over time and lose their bond in the presence of high heat.
A product that is good for outdoor sealing is the flowable silicone by VersaChem called,
"Windshield and Glass Sealer," part No.75009.
Phil - AC0OB