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  1. Prepare panels to be butt-welded by insuring that the edges are as close to parallel as possible. Clean metal, free of paint, oils and grease is critical.​

  2. CAUTION: Insure flammable material is not present in and around the seam to be welded.

  3. Loosen wing nut and remove copper E-Clamp from clamp assembly.

  4. Install spacer blade and clamp body to panel by passing blade through the gap of the two panels.

  5. Insert the copper E-Clamp backing bar through the opening in the spacer blade.

  6. Tighten the wing nut to secure clamp to panels, adjust as needed to obtain best location and alignment.

  7. Proceed to butt-weld the panel together along the E-clamps. Once sufficient panel welding had been completed, clamps may be repositioned for further welding or removed.

  8. One advantage of the E-clamps is the ability to perform a stitch weld easier with less risk of warping and blow-through.

  9. Once all of the welding that can be performed with the E-clamps installed is complete, final stitch welding between the remaining welds must be done. The finish welding of the panel will be done with open gaps, or other copper backing tools can be utilized (paddles, magnetic plates, etc.).

Top Side Using 12" E-Clamp showing Copper Backing Bar
Back Side Showing 12" E-Clamp in Place
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