screen filler removal

[snozzcumberpie.livejournal.com]

sooo like the tard that i am i forgot to wash the brush i was painting the screen filler onto my silk screen. i was wondering if anyone knew of anything that would clean that off (besides the "grease lightning" speedball recommends on the back). i have items in my household including turpentine, petroleum jelly, rubbing alcohol........?!

EDIT: i washed the brush in super hot water. it worked. (the speedball manual says when rinsing out drawing fluid not to use HOT water, so i figured it might deteriorate the screen filler..... AND I WAS RITE!)