Home > Products > GM Tape GM Fiber Tape Sewing GM Fiber Tape is a pre-glued perforated tape designed to eliminate the need for a pre-ply at the attachment point. It helps the applicator to create and hide a smooth surface without bubbles or bubbles. GM Fiber Tape Specification Material Fiber Glass Length(m) 60/90 Width 50mm Water Content Less than 0.5% Glue Content More than 25%