The boys have it right -
I've dipped heaps of canopies in Future - it works beautifully. Never had any runs. Just hold the canopy (with tweezers) on an angle and let most of the Future drip off, then set it on a tissue. Cover witha bowl and there you go.
If you find specks of dust, just clean the Future off with an ammonia based window cleaner (like Windex) and start again.
It's easy - try it and you'll see. You'll greatly improve the clarity and shine of the canopy - just make sure you let it dry for a day or two.
Cheers
LeeTree