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Combination of gases


#1

Hello. Please enlighten a newcomer and tell me when to use this
combination of gases.

1  oxy/propane
2. oxy/acetylene

Thank you,
Sheridan
cernikslc@aol.com


#2

Sheridan,

Oxy/propane:

If you have the right torches this is the best, cleanest, general
use fuel, IMHO, and it is the most convenient fuel for platinum
work.

Oxy/Acetylene:

Best for casting and medium to large silver work where a lot of heat
is needed. Never use it for platinum work.

Larry


#3

Hello Sheridan: Oxy/Propane is the combination I use on almost
everything, ie. sizing, retipping, chain repair, assembly, casting,
lead soldering, all platinum work. A tank of propane lasts forever.
It is cleaner and is recommended for platinum work and casting gold
and silver.

Oxy/Acetylene is what I use for large silver Items and for soldering
silver or gold rings with heat sensitive stones underwater. I do not
use it for casting because it is not recommended.

I set up my propane and Acetylene tanks with "quick disconnect"
fittings on the regulators and the end of my fuel gas line with the
same. This way when I need to switch gasses all I have to do is
unplug from one and plug into the other. I use a “little torch” and
sizes 3,4 5,6 and 7 tips. As a full time bench jeweler I usually have
to switch over to Acetylene once or more a day.

Michael R. Mathews Sr. Victoria, Texas


#4
Oxy/Propane is the combination I use on almost everything, 

How does oxy/propane compare to oxy/natural gas? I’m about to order
a Meco Midget, and need to choose. Thanks!
–Noel