I tryed in the rain didn't work but still amazing on poles, concret, boards, and mailboxes. But wish th really were water working(apreply) if you want something that writes on anything then get a Hobo Marker.
hollyyyyyyy..... sheeetttttt this thing is dope! it holds 1 oz of ink,its tiny to. you can fill it up wit smash ink,flow pen ink,all that good stuff! its meNT fore ink i think so if you are gonna fill it wit paint,pop out the flow control thing in the nib. warning!!! this won't last for ever! the lip around the top of the marker will stretch out over time and the nib won't fit in,it will slide in and out! the happened to me !! but still worth the cash.
BUY IN YOUR NEXT ORDER!!!!
If you're a long time fan of these,buy as many as you can while they're still available.Sanford,(the makers of sharpie)bought out the Pilot brand,and a pretty reliable source told me the new Sanford version of the supercolor marker is NOT refillable.This probably means that Pilot will no longer be making refills,so stock up on those too..sorry to be the bearer of bad news.