I have one of those too, although I have a crack to accompany it. Most of it fits under the lip though..
In your case, the clear bra makes spraying it a lot more difficult. Maybe try one of these?
https://www.automotivetouchup.com/st...nts/index.aspx
I used an aerosol can from this place to color match my TRD style spoiler and it's a perfect match.