Grade 1100 is 99% Aluminum content. Length Tolerance + 5 feet.
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1100 Aluminum Foil Adhesive Back (O) .0015″ Thick x 6″ Wide x 180 Feet Long Roll
1100 Aluminum Foil Adhesive Back (O) .0015″ Thick x 6″ Wide x 180 Feet Long Roll Thickness Tolerance: +/- 10%. Length Tolerance + 5 feet. Width and length tolerances for ±1/16″. Temper Softened (O) Grade 1100 is 99% Aluminum content.