Unless the scratch is on the UNHEATED area, I doubt that it can be repaired or buffed out. All of the glues, fillers, etc, that might be used top out at 450 to 500 degrees.
The scratch is now a weak point, and I expect that at some point it will fail, when that occurs then replace the top or the entire unit. I am sorry about the scratch, cannot imagine what would scratch this except silicone dioxide (sand paper) or diamonds.
Hope this helps.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|