4" Fiber Insulated Aluminum Backing Tape, 4" (101.6mm) x 40' (12m) Long. For Applications up-to-130 Amps. Roll of Aluminum Adhesive Tape with Heat Resistant, 3/4" (19mm) Wide Woven Glass Fiber Insulating Strip. For High-Quality One-Sided Welds and Minimized Post Weld Clean Up.
Eliminate the need to back purge by attaching the backing tape to the backside of the weld when welding thin wall stainless steel sheet and vessels from one side only. This specially engineered tape supports the weld puddle and surrounds the weld pool with shield gas, while giving a consistent high quality under-bead profile.
The Glass Fiber Insulating Strip will support weld currents up to 130 Amps, 2" (50.8mm) material and 250 Amps, 4" (101.6mm) material without change to the chemistry or metallurgy of the weld.
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