Cleaning polycarbonate doors

[chevling]

Hi all - I have a few sites where the doors did not age well - power washing didn't help much. They are faded or impossible to see through unless wet. What do you guys use to clean your doors?

 

[Whale of a Wash]

I use Dawn dish soap and a old foamy brush with a bucket then rinse with High pressure. Works pretty good--Dawn is amazing on greasy stuff, but i won't say its the best.

 

[soapy]

I use a mild solution of muratic acid diluted with water. Cleans down to the shine for little money.