DURAK Poly-soft CFR are embroidery threads made from 100% continuous trilobal polyester fibre to which a flame protective solution is added. This chemical flame retardant finishing method covers the surface of the threads according to international norms and quality standards. Even after 20 washes its properties are kept according to NFPA 701. They melt and self-extinguish once removed from the source of the flame. Even at high speed sewing they provide excellent seams. DURAK Poly-soft CFR are suitable for many sectors because of their high textiles strength properties, their many colours and large ticket range.