Actually, powdered sugar, dry, works very well for polishing canopy's.
For finishing a truly opagued canopy, I use Testors Clearcoat.
Tom
Tom T
“Failure is the opportunity to begin again more intelligently.”-Henry Ford
"Except in the fundamentals, think and let think"- J. Wesley
"I am impatient with stupidity, my people have learned to live without it"-Klaatu: "The Day the Earth Stood Still"
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