I took the advice of the forum and purchased a Lincoln SP 110 MIG welder to take care of some drill holes in the floor plan and weld in some bucket seat brackets in my 1970 Chevelle. The welder came with a 2 lb roll of solid core .025 wire and I had the bottle filled with 75% argon, 25% CO2.

I have been busy teaching myself how to lay down a bead on some scrap sheet metal I had before attacking my floor boards. I am just about to the point where I can patch a hole in stead of making one.

I am finally realizing how critical the correct amperage and wire speed is however, I got a couple quick questions fro you pros.

(1) Do you suggest I use .030 wire, or will the .025 do the trick?

(2) what gauge sheet metal are the floor boards.

The inside cover of the welder gives amperage and wire speed settings based on the guage/thickness of the metal. In my vast experience, 4 days and a half roll of wire, I have found these settings to work ok.

Thanks in advance

Brad Howard