STICKY PLASTIC HELp!!!? I have asked this query three times but nobody seems to know...

I have asked this query three times but nobody seems to know for a certainty how to fix it...

I have a piece of plastic that be painted with krylon plastic paint in the region of a week ago and its still a bit sticky to the touch although completely dry, what can i do because its in a place that will be touched alot will i know how to fix it will a clearcoat or something? HELP!
How do i clear up a foggy pool?
Answers:    Yes it will help but if it don't work plan b is other there .There be not enough hardener within the paint Could be caused by not shaking the can adequate or real cheep and outmoded paint. To do it right strip it and redo. You may cover it but the inside will remain soft and it will be sticky.
How long should it steal for Temperature of...
You could definitely use a clear coat. My husband spray painted the center console of his prehistoric car and it be sticky. Took 2-3 coats of clear coat... but it was angelic! Just don't buy the really cheap stuff.. spend a little more for a better competence!

Hope this helps!!