1. I recently read that acetylene should not be used with
silver (http://www.c-f-c.com/specgas_products/acetylene.htm). Is
this true? I have used it for silver in the past during formal
instruction at a local university.
I've used acetylene successfully for years with silver. Check the
archives as there has been some lively debates on the plus and
minuses of each type of gas.
2. Is a Flashback Arrestor necessary in this application
(using ambient oxygen)? If so, should it be installed at the
Yes and yes.
3. Is there a device available to specifically detect
acetylene gas leakage? If so, where do I get it?
I just exchanged my empty acetylene tank for a full one today. I
asked the welding shop about gas leak detectors and they said the
ones the can order are for commercial welding shops that need to
comply with OSHA. $6,000 was the price range they quoted me. I'm
sure there are less expensive options out there. I recently
installed a Kidde Carbon Monoxide and Explosive Gas detector in my
workroom. The instructions say it will detect propane and natural
gas. I have tested it with acetylene and it did trigger the alarm.
The alarm sells for about $70 at your local home center and runs on
household current with a battery backup.
Your mileage may vary and I'm not endorsing Kidde products or their
use. I'm just stating how I am using the product and sleeping a
little better at night...
Rick Copeland -- Silversmith
Colorado Springs, Colorado