Hi James, I have painted my bumper twice during my ownership. Once in 2015 in St Martin and just last week. Each time I used a can of acrylic spray paint acquired at my local big box store intended for plastic yard chairs. I found it to have excellent adhesion. I simply sanded with 220 grit, cleaned and sprayed multiple coats. The paint lasted 4 years before wearing through. It did not flake or crack and cost less than $5. even in the Caribbean. I was also able to find a excellent color match to the slightly off white Amel hull.
Will Stout Anni Bea True SM 180 For Sale in Annapolis, MD.