there were a couple of yarns where people mentioned they were
using acetylene for fuel. curiosity prompts me to ask the
question: what advantages are there using acetylene as opposed
to other fuels? propane, natural gas, hydrogen and i hear map
gas burns infinitely cleaner than acetylene. i know the natural
gas doesn’t work well casting platinum but the other fuels,
especially hydrogen are plenty hot enough. acetylene is hotter
than all these fuels (except hydrogen) but introduces
contamination to the metal we’re heating/melting.
i use popane for all the above metals to fabricate and cast. i
would prefer hydrogen to cast but i’ve been too cheap to buy
i have a perspiring mind, and i want to know.