Get the bottle hotter, slower. I would suggest perhaps an oxymapp torch with adjustable mapp tank and oxygen tank valves ($50 from Sears, with tanks - READ INSTRUCTIONS). Just heat it up with the straight mapp flame (maybe with a touch of oxygen, not too much or you'll get a very hot flame), and gradually work the bottle over with the flame slowly until its glowing red almsot white hot, then I dunno what to do, but I like my cutting torch
Buck268 Reviewed by Buck268 on . blow torch help i am using a bernzomatic blow torch. i know this sounds stupid but how do i light it? or does it lght on its own after a while. it is a 14.1 oz. tank and has the standard pencil nozzle. Rating: 5