That's how mine are ....rubber seal with a thin layer of RTV. I don't have a problem with fogging headlight lens.

I will tell how dumb I was...there is the white running light. (upper outside corner of the lens) Mine burnt out on the driver side..I removed the bulb to get the number off it...never returned the socket back in place . Two days later desided to rinse down the motor. Give you two guesses where the water ran into which hole !! I give myself the "goof ball" award on that one...

But seriousely, my rubber seals do have a thin layer of rtv to support the water tightness. Has been working without issue.

I have to attest to just keep the water hose way from any open bulb receptors however !! LOL