How would you seal the rear 126 tail lights if too cheap to buy new gaskets
 

Most 126 rear tail lights that I've seen leak and the $80 prices I've seen for seals isn't going to cut it.


How have you stopped the leak without causing paint or rust damage from the sealant?

Go to a hardware store and get weather stripping.

Maybe buy a roll of butyl windshield installation ribbon. The nice thing about it is that you can mold and work it like clay. I've found many uses for the stuff!

I have just smeared the old seals with silicone and reinstalled with good results.

Duct seal from the electrical supply house (or the electrical isle of HD).

$5 for a block of it, roll into a rope (like playdoh) and then mash where you need it.

It is used for sealing wire penetrations that will need to be opened at a later date, so it doesn't "glue in" like RTV.

As above. Called "Monkey Shyte" by sailors who use it to seal watertight cable penetrations.