correcting scratched glass?
 

In article ,
ray lunder wrote:

Ahoy, I have a portlight that someone scratched up,...Is there some kind of
compound that would buff it out?

Traditionally, cerium oxide is the compound of choice.

See - as one example:

http://www.facetingmachines.com/polishing_glass.shtml

for a little more about how to deal with scratches.

ron