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Used these on a fresh aluminum weld prep job and the surface stayed completely free of that gray contamination I used to get. The bristles are stiff enough to bite into the oxide layer without leaving any steel residue behind. Exactly what I needed for clean TIG results.

Finally, a brush that won’t ruin my aluminum welds. The bristles are stiff enough to dig into the surface without leaving any steel contamination.

I’ve been using a stainless steel brush for aluminum welding prep and it really makes a difference—no contamination, just clean joints every time. The bristles hold up well without shedding, which I appreciate.