Headlight seal recommendations

[StuntmanMike]

I am going to strip a headlight down this week.

What is the best sealer to apply on rebuild?

Silicone?

Butyl tape?

Anything else?

Thanks in advance.

[Subterra]

If it's any help, quite a few years ago I found some clear sealer like tiger seal.
I had opened up some large HGV headights to clean them out owing to water ingress.
Cleaned of all the old sealant from rear plastic mouldings and the flat glass fronts, that was a mission.

Applying the new seal was also a task that involved great care as this stuff stick like chit to a blanket.
The tube was dispensed from a skelie mastic gun.
Does not keep however once the metal seal is broken, set rock hard.
May have ordered from Amazon, I know you can get white & grey.

[StuntmanMike]

Ta, if it works on HGV headlights etc.

This was going to be my approach but I keep seeing advertisements for Butyl tape.

In your opinion can you split this headlights again? Or is this a if it doesn’t work chuck them away thing?

Also, out of interest, what has the truck?

[LightweightLouisDanvers]

Might have to give this a go, one of the headlights on my son's Polo seems to be suffering from water ingress.

[21TonyK]

LightweightLouisDanvers said:

Might have to give this a go, one of the headlights on my son's Polo seems to be suffering from water ingress.

As are my daughter’s rear lights on her polo. VW want 150 diagnosis fee to see if it’s covered by warranty!