Technical Bulletin DPX - Innovative Fiber Technology Through a proprietary process, Samson engineering has significantly changed the surface characteristics of traditional HMPE ropes. This technology increases the coefficient of friction (COF) and enhances abrasion resistance. Samson recently developed "DPX" fiber using this technology. DPX is a unique blend of Dyneema® and polyester that provides a "prefuzzed" appearance, which wears and grips better than any HMPE fiber. The patented use of this unique fiber (US Patent No. 7,134,267) has resulted in three Samson Better Grip - Higher COF Coefficient of Friction (COF) is measured based on the principle shown in Fig. 1. Experimental results show that DPX has a higher COF than polyurethane coated HMPE, as shown in Fig. 2. HMPE (coated) Best Abrasion Resistance Fig. 3 compares abrasion resistance of different synthetic fibers with uncoated polyester. DPX has the highest abrasion resistance tested per Samson standard testing procedure. Fig. 3 Abrasion Resistance Comparison The combination of the high COF materials and the additional unique "fuzzed" surface provides better grip between the fiber and the substrate. The increased COF allows for the use of HMPE lines in applications where 100% HMPE ropes were previously limited, such as working on capstans www.samsonrope.com | Email [email protected] | Tel +1.360.384.4669 Nylon Polyester THE STRONGEST NAME IN ROPE