Polyamide sewing threads Micromolecular lubrication to ensure minimum wear and tear of machine parts & trouble free running of thread on machine. Controlled low elongation and high tenacity which means even and regular seams and no skipped stitches. High resistance to alkali. High abrasion resistance. Available in various specific treatments like: water repellent treatment for waterproof stitching. Available in any packing as per the specific requirement of the customer. Opel is available in a range of shades.