Is your material clean? A little bit of foreign material on it will make a big difference. Mig welding can't stand rust, oils, excessive mill scale, moisture, and paints.Is your wire clean, no rust on it, and dry? Another problem could be magnetic arc blow.That is when your welding, and you get huge amounts of spatter blowing from your puddle as you weld. To stop that, move your ground to a different location, or move your material to a different angle.Its caused by the magnetic energy created from the current running from your ground, through your material and into your arc. Try Pam cooking spray for anti spatter.
OH I didn't notice that it was gas less wire. Flux core wire? Make sure it's dry dry dry. Put it in an oven if isn't on a plastic reel. If so put it in a box with a 100W light bulb, to dry out.
Now I'm wondering if you're calling the **** left behind from the flux core the spatter. Unless your using cover gas, you'll have **** similar to the **** you have from stick arc welding, just a little less.
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If it's an cheap brand then splatter comes with the package. It helps to grind clean what you're welding and heat it with a torch first. I had the same problem and when I was done with the project it fell apart. I'll never buy a cheap one again.
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