Best Glue for tail lights?

[Shvegel]

Hi,
I am gluing my taillight lenses to the reflectors tomorrow.  I am thinking a light bead of Silicone sealer should do the trick.  Does anyone else have any ideas?

[wwheeler]

While silicone is a good sealer and gap filler, its adhesion and tensile properties aren't great. So if the lens doesn't fit well, don't expect the silicone to keep it from pulling apart.

There might be some clear epoxies, but I would be afraid of them turning yellow with age. There is the new line of UV glues. I have not used any of them, but maybe worth a look.  https://www.bestreviews.guide/uv-glues

I would think that my be something I would look at seriously.

[Shvegel]

Wallace,
I actually just used some UV glue at work.  Although i really like the stuff I think the viscosity is too thin for this application.  I used the thickest grade of the stuff and it still flows quite a bit.

[GM]

I’m a fan of this - https://notaglue.com/

[wwheeler]

Not sure if you have had any fillings on your teeth lately, but they use a UV cured filler. I need to check UV glues out further.

[Shvegel]

I went with Permatex Ultra Grey Silicone.  It fills the gaps well and this morning I couldn’t pull the lens off the reflector.

[wwheeler]

Ultra grey is better than clear aquarium silicone for sure. I guess the grey color wouldn’t be an issue. You couldn’t use that for the lens to the chrome frame could you?

[Shvegel]

The lens doesn't seal to the frame only the reflector.  i had an issue with the old ones that were electronically welded leaking at the seam and getting the bulbs and circuit boards wet.  In this application adhesion isn't too much of an issue as the joint is under compression.