View Full Version : Gas welding filler rod

10-21-2009, 03:03 PM
What are the options for gas welding filler rod? I tried the er70s-2 and didn't like the results. The copper seemed to sizzle and spatter off leaving a very dirty weld. Good thing I was using practice material.


10-21-2009, 04:47 PM
I use the er70s-2, or, er80sd-2 for TIG welding.
For oxyacetylene welds, I have had the best results with RG-45, or RG-60.
Oxweld# 7, or, Oxweld #32CMS, are recommended as well.
Search Gas welding rod, or, gas welding, using the "search for all terms" function, on this site, there is a lot of previous discusion, opinion, and expert advice.


Cub junkie
10-21-2009, 10:14 PM
I use RG45 for ox-acet. I clean each rod with acetone and a paper towel. A lot of grime comes off in the cleaning process. Eye and hand protection with proper ventilation suggested when using acetone.

10-21-2009, 11:13 PM
RG45. Easy to find and welds the best IMO. The electric rods act weird with O/A, seem to splatter more and more finicky.

10-22-2009, 02:01 PM
Probably getting some oxidation on the end of the filler rod with ER70/80 series when welding with O/A. Haven't used the O/A in a couple of years I always fire up the Tig machine. Try some different rod and see what works best for you. My recommendation are the same as above. Try the RG series.