Urethane = Un-dissolvable by solvents Styrene = Solvent dissolvable Also remember for you guys and gals that like to hot wire foam, "URETHANE will kill the brain"!
Regards, Larry A Capps KR Newsletter CD Naperville, IL -----Original Message----- Is the foam that is used fuel resistent or does it desolve. and the glass is used as the protectorant. can the pink insulation foam that is available at home depot ok to use or is there a better type.