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The Forney 42300 Flux Core MIG Wire is a 2-pound spool of .030-inch diameter mild steel wire designed for all-position welding without the need for shielding gas. With a tensile strength of 79,000 PSI and low spatter performance, it excels in single-pass, high-speed applications, especially outdoors or on rusty and painted surfaces. Trusted by professionals and DIYers alike, this self-shielded wire delivers clean, strong welds backed by Forney’s 90+ years of metalworking expertise.





| ASIN | B0009ZH7KW |
| Assembled Diameter | 0.03 Inches |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #32,663 in Automotive ( See Top 100 in Automotive ) #37 in Welding Wire |
| Brand | Forney |
| Capacity Description | Recommended Polarity: DCEN Straight; Tensile Strength (PSI): 79.000 |
| Certification | Meets Industry Standards |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,295) |
| Cutting Diameter | 0.03 Inches |
| Date First Available | February 16, 2007 |
| Global Trade Identification Number | 00032277423008 |
| Included Components | Forney 42300 Flux Core Mig Wire, Mild Steel E71TGS, .030-Diameter, 2-Pound Spool |
| Installation Method | mig-welding |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2 pounds |
| Item model number | 42300 |
| Manufacturer | Forney |
| Material | Mild Steel |
| Measurement System | standard |
| Number of Items | 1 |
| Part Number | 42300 |
| Pattern | Welder |
| Power Source | Hand_powered |
| Shape | Cylinder |
| Size | Pack of 1 |
| Style | welder with wire |
| Thickness | 0.03 Inches |
| UPC | 032277423008 |
| Unit Count | 1.0 Count |
| Warranty Description | 90 day warranty against manufacturer defects |
R**C
Great wire
Best wire I have found on Amazon. Low splatter, good welds. I’ve tried others and they don’t compare.
R**Y
Good wire.
This is a good wire. The welds look clean, it is easy to use without gas, it has moderate spatter, it functions great and fits is small flux core welders. This makes good looking welds and is a great value for the money.
G**.
Best fluxcore wire for small welders
I'd like to start off by saying that in no welder, just a guy with a welder. This wire Is infinitely Better than the oxidized matte wire that you'll find at harbor freight. This wire works wonders, it's very forgiving and holds a consistent arc. It doesn't glob up like HF wire does and It deposits very smoothly and nicely. Not being a welder I don't know how It compares to larger spools made for industrial machines but from the multiple small spools ive tried this one has been the best. Don't cheap out on wire. P.S. to the reviews complaining about the wire unspooling, that's user error, you need to hold the wire to keep it from unspooling as you out it in the drive rollers. Happy welding!
C**R
Very good wire for the money
Very good wire for flux core welding
J**S
Notably smoother than the competition
I'm a trash welder, lemme be the first to tell you. I don't get much practice, and most of the work I do is on exhaust pipe which is notoriously hard to wire weld. Since I never know if I will be working indoors or out, gasless flux is my weapon of choice despite that it is more suited for heavy gauge structural welding, not having to worry about wind ruining my weld makes it worth the headache. With all that said, I try to improve where I can, and while watching welding content on the tube I noticed that Forney wire was consistently complimented by every welder I saw use it for it's lack of spatter and smooth application. With the spool in my machine running out I decided to give it a go, and can say that even at my skill level the difference is noticeable. The arc sounds smoother, the weld is physically smoother, there is way less spatter on the material and what spatter there is is almost never stuck more than a dusting-off with your glove can handle. That smoothness makes it easy to burn through thin materials without much warning, but if I get the speed right, I end up with less pinholes to go back and fill after than with my old wire. I won't make any assertions as to whether my welds are "better" (i.e. stronger) since for repair-grade exhaust work strength is almost meaningless compared to airtightness. I will say an untrained welder with a couple dozen hours of experience using the wrong type of welder for the wrong type of work, I find it easier to make an airtight union, and my results are typically more appealing to look at using this wire compared to others I have tried. I'm sure someone with some skill, using their flux welder for it's intended purpose could really turn out some nice joints.
E**Z
Buen eletrdo para soldar
A**P
works as advertised
works as advertised
P**H
Very solid
Works great with my small welder. Quality of electrode is great. Helps me with welding g in tight spaces where stick welding is too hot. Good value and edits standard spool in welder.
S**A
افضل منتج جربته من ناحية النقاوة والنظافة والقوة
T**N
very good welding wire
J**Y
I've many years experience with Mig-Co2 but never used gassless before. I was put onto the Forney brand by a youtube reviewer and thought I'd give it a chance. It was every bit as good as he said, easy to use and leaves only a dusty slag residue which just brushes off. Gasless is really only for outside use IMO as there is a lot of smoke. Alternatively, use an airfed mask if you have to be indoors. I used the wire to build a new section of chassis for my truck and will buy more.
S**D
all good
C**Z
Un buen producto, muy recomendable.
Trustpilot
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