I realize that I always sound like a broken record on this topic, but, if you do go paint, just keep in mind that the Krylon paint is not just paint that adheres, it is a chemical reaction of sorts.
A few years ago I did experiments in my lab, I mean, garage, and I had to wait 2 full weeks before the paint 'cured', that is the key thing, it actually has to "cure", not just dry. It says it on the can too. It scratches even worse then normal paint before it is cured.
Back in the late 70's I 'painted' my pick-up's red interior, it was vinyl, and I used vinyl paint to do it. (I don't think they sell this [probably dangerous] stuff any longer though) Anyway, this stuff seeped into the vinyl, really well, you could not scratch it off if you tried, and I did try.
That is why I am such a proponent of Krylon, it's essentially the same thing, I believe, just made differently, maybe 'greener'. I'd love to be able to buy that stuff I had though, man, that was GOOD stuff!
I would think that there would be no way at all any Krylon type paint could mess with the plastic in any boat, but, if there was ANY problem with your boat, the company would jump on that first, in a hurry. So there goes your claim. Realistically though, what could go wrong with any boat anyway, I seriously doubt that any of our boats would ever need to deal with a warranty. These things are all made to last, they may fade in time, and get scratched, but they would very rarely, if ever, break.
It's not my money though, and I don't blame anyone for thinking that something might go wrong.
Also, keep in mind, that any camouflage that is fabric will always find it's way to something that will make it entangle forever.
I have some really good camo netting (like BAZ "A.S.I.GN.") used in the link in his other thread, but that is crazy when it comes to entanglement, at least for me. I would imagine that the burlap that some of you use(d) doesn't do as bad though. The hemp looking stuff that is on some of the links looks like it would also be a semi-nightmare to keep out of things way.
Cameras, tripods, your feet, and remember, it's all a pretty tight fit when we are in there.
Nothing that y'all don't already know, I'm just bringing it up again in case someone has not thought of it, or has forgotten. I'll try to shut up now...
Here's a link to a LOT of information that you can choose to read, or not, I would prefer the dye, that is probably what I used years ago...
Vinyl Paint or Dye?