Another alternative is rubber cement! i dont know if it ignites from a spark, someone is gonna have to try this... I burnt up my last bottle
Here is a little video of the Halfords Rubber cement taking a spark from a Swedish firesteel. (it also doubles up as a way to fix a bicyle puncture if you have some patches as well)
http://www.amfearliathmor.pwp.blueyonder.co.uk/DSCF3001_reduced320.avi (2.8 Meg)