c5d3f0dd_ter_Materials___ATXHackerspace__DANGER_
[Material] PolyPropylene Foam [Cause/Consequence] Like PolyStyrene, it melts, catches fire, and the melted drops continue to burn and turn into rock-hard drips and pebbles. [DANGER!] 
Catches fire
Laser Cutter Materials - ATXHackerspace
DANGER!