I would like to know the best my of restoring the headlight lens on my C6

 

I think most here replace (more accurately send off for replacement) the lenses. Member RLSebring does this service, and most any other headlight service, as a side business vendor here. It's expensive but the result is flawless.

However, if you like to DIY or just save money, here is the best DIY I've seen posted here. It's from a few years ago but no one has posted anything better. Good luck.

https://www.corvetteforum.com/forums...polishing.html

 

Rick said the same thing I did in OP's thread in C6Gen. Good luck, sa.

 

This is a bit dated, as a pro detailer that restores headlights on a weekly basis, this is the best I have seen for the DIY'r. Let There Be Light

 

There seems to be a problem with Links, so another post to continue.
Let There Be Light has a complete kit to do a full restore, and is awesome, but is some work and you have to be careful with the coating and tape/paper off the surrounding areas..
However if you want to do it without that do this:
The key to a good restoration is to sand all the coating off. Finishing with 600 is simply way to rough.
I start with 800 grit, going left to right on the entire headlight and remove any coating that is still there, You should have a surface that is he same over the entire cover, no lines of the previous coating
Then 1000 grit going vertical top to bottom. When I only see vertical sanding marks, and removed the left to right marks I move on to the next grit.
Them 1500 grit going left to right until all the vertical marks are removed
Then 2000 grit back to vertical until the horizontal marks are removed.
any imperfections that you see, ie. coating that is still there, you need to remove it.
Then polish off with any finishing product, Meguiars 205, Zaino ZPC, Meguiar's Plastic Polish, etc by hand or with a buffer.
Then you MUST follow up with a good coating. As a DIY, Meguiar's Headlight Coating is excellent
The above sounds like a lot of work, but trust me shortcuts will have the cloudiness back in a few months.
In my shop I use a ceramic coating that is lifetime.
Hope this helps

 

I did the sanding,buffing to mine last weekend and was impressed with the results and improved viability.