Fire-retardant thread
InTents | April 2010
The patented Ultimate “K” Fire Break™ sewing thread is the newest addition to the Liberty Threads “Ultraflow”™ quilting and sewing threads product line. Constructed using DuPont™ Kevlar® fiber, the thread is TB 1633 compliant. It can be colorized in any shade, leaves no residue or fly waste on equipment and has superior tested sewing performance in stitch formation.

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