[Cam]

Originally Posted by Simply Nuts

I haven't resealed them yet.
Just bought the car, i need to get from the previous owner spare tail lights.

I heard that silicon is not good because it's compound can cause rust to the metal when it touches it.

that sounds like bull...

The metal is painted (which will protect it from rust, as well as the clearcoat). Silicone will stop moisture from getting to the metal, which will also help against rust. I don't think I have ever seen evidence of silicone causing rust. I siliconed mine in, and it did the trick. Clean to this day...