Residue Inside Headlights

Anyone know what this might be? I opened these up to clean and seal them a couple weeks ago. Then, this crusty residue built up on the inside of the lens. It isn’t coming off very easily. Anyone have any ideas to get it off? Btw, these were cheap eBay headlights, so I’m not very concerned if I need to get another set. They are apart right now.

 

I gave up on aftermarket light units. They seem to always fog up after a few years. I just get OEM now.

 

I understand. This is very different than the usual condensation or yellowing on the outside.

 

Novus plastic polish?

 

That's kind of what I'm thinking and was baked from the increased temperatures of the lights.

 

I was meaning to use Novus to remove the residue. I’ve never used it on headlights, but I’ve used it on other stuff.

 

Is this available in stores or only online?

 

Somebody is not happy about the headlights

 

Where I live we have a plastics place that deals with everything plastic. Polycarbonate, acrylic, sheets, rods, etc. That’s where I bought mine. They might have it at an auto parts place.

 

Ah I see what you're saying. The OP said he opened them up a couple weeks back, so I was thinking maybe it was remanets of whatever he used when he cleaned & sealed them.

 

I don’t know WHO that is.

 

Thanks. I’ll look into it.

 

It’s looking better - at least until I get some new ones. Thanks for the input.

 

What did you use to reseal the headlamp? I've seen some people recommend products like RTV silicone on forums like hidplanet, which is a bad idea. RTV will offgas a silicone haze inside the lamps.

 

Cheap EBay! You answered your own question. Problem found and solved.

 

Oh man.. that’ll be my excuse to the wifey to buy new headlights..

 

This is my guess, actually. I have something else for this time sealing them. I’ll seal my new ones right off, and it should be good.

 

You can buy butyl rubber in strips. It wont offgas like rtv silicone will.