Genuine MAPP gas can be used in combination with torch for heating, , and even because of its high temperature of 2925 °C (5300 °F) in oxygen. Although acetylene has a higher flame temperature (3160 °C, 5720 °F), MAPP has the advantage that it requires neither dilution nor special container fillers during transport, allowing a greater volume of gas to be transported at the same given weight, and it is much safer in use. nevertheless all safety precaution regarding welding are expected to be observed by the user.
A MAPP/oxygen flame is not entirely appropriate for welding , due to the high concentration of in the flame - higher than acetylene, but lower than any of the other petroleum gases. The hydrogen infuses into the molten steel and . For small-scale welding with MAPP this is not a serious problem, as the hydrogen escapes readily, and MAPP/oxygen can in practice be used for welding small steel parts.
MAPP/oxygen was advantageously used in underwater cutting, which requires high gas pressures (under such pressures acetylene can decompose explosively, making it dangerous to use). However, underwater oxy/gas cutting of any kind has been largely replaced by because it cuts more quickly and safely.
MAPP gas is also used in combustion with air for brazing and soldering, where it has a slight advantage over competing gas because of its higher combustion temperature of 2,020 °C (3,670 °F) in air.
a MAPP/oxygen flame is still highly desirable, having higher flame temperatures and energy densities than any flame other than acetylene/oxygen, but without the dangers and inconveniences of acetylene/oxygen. Jewelers, glass bead makers, and many others find it very useful. Plumbers, refrigeration and HVAC engineers and other tradesmen also value the high heat capacity of the MAPP/air flame; MAPP was until recently widely used, supplied in small to medium size containers.
Blowtorches are used to brown and sear food cooked by low-temperature techniques. we recommend in Modernist cuisine: the art and science of cooking that MAPP gases should be used in preference to cheaper butan or propane as they produce higher temperatures with less risk of giving the food a gas flavor, as can happen with incompletely combusted gas.
The torch is not self ignition type you need spark lighter to ignite
WARNING don't aim the torch at anyone not even at animal
What's In the Box
welding torch and gas cartridge
