Any experience with Krylon Fusion paint...on the water side of the glass?

I've got a large tank that I want to paint the back side black. I would typically roll a couple of coats of black marine enamel on the exterior of the glass. I have 2 large overflows that the previous owner covered with blue plexiglass (not removable). I was going to re-cover the blue plexi with black plexi at a cost of $45+. A fellow I know has used Krylon Fusion spray paint on the water side apparently with no problems. I would like to know if anyone else has used this product? It is supposed to be fully chip resistent after 7 days drying. My concern is if it flakes off over time or if it will peel/flake when using one of the plastic scrubbies for cleaning. Being these are the overflows I don't really plan on doing much surface cleaning of them anyways.

Would you do gloss or satin finish?

This is the product link: http://www.krylon.ca/ca/eng/products/fusion_for_plastic/

Thanks,

Ken

haynchinook334 said:

I've done it with a blue back acrylic tank before. To preventing the chipping of the paint, you got to sand the area you want to paint. Clean it and spray.

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The current overflows are covered with a shiny/glossy blue acrylic. So you suggest this is what should be sanded/roughed up so that the krylon makes a better bond? (just want to confirm). What grit sandpaper did you use? Just enough to take off the shine or was it really roughened up?