Advice on painting the ergonomic grip on my new crutches.

TabiRaider

I've purchased my new crutches, the ones you see in the picture. I'm about ready to personalize them by painting the grips and shoulder cuff parts. 
My question is simply, which type of paint would be best? I just wish to spray them black, no tricks, flames, just black.
Primer coats then base coats of black and then seal the whole lot in with sealent / lacquer.
Is this the right type of paint?

Please help.

Tabi.

50Twuncle

This is flexible plastic 
So :
Degrease the plastic 
Sand it down to help any paint stick
use a flexible primer - such as https://www.amazon.com/SEM-39133-Flexible-Primer-Surfacer/dp/B000HAXLZO
repeat the primer - at least 2 coats
then paint with https://www.amazon.co.uk/s?k=krylon+fusion+paint&dc&qid=1583754520&ref=aw_s_fkmr0
laquer should not be necessary - as long as you prepare before properly

TabiRaider

Thank you!
That's just what I needed to know!
If it works out well then I'll put some pictures up as an example of crutch personalisation . . 
If it goes badly, well then I'll hide my shame behind a ruddy great pizza from Pizza Hut and the movie Predator (80's), mumbling to myself about how, back in my day, they made 'REAL movies', with REAL Arnie running around a REAL jungle. None of this CGC and CGI or PG Tips monster crap the kids these day get 'jiggy with it' to. No! We had REAL men inside REAL rubber suits so tight and restricting that NO creature actor was ever medically capable of reproducing for ATLEAST A YEAR!
Ok, so yep. Thanks for the amazing help. 😹