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Soft touch. Strong possibilities. This is not “your father’s” rotomolding resin. XUS 58441.00 Experimental Soft Touch Copolymer(1) is an innovative, elastomeric material that combines soft touch and feel with a UV20+ rating(2) and exceptional impact, slip, and abrasion resistance. These attributes – along with easy processing, ambient pulverization capabilities, and outstanding color stability – make this 2017 R&D 100 Finalist an ideal choice for grips, non-slip surfaces, toys, furniture, and any other application that can benefit from enhanced tactility and durability. Table 1 lists key benefits XUS 58441.00 offers in comparison to a typical, commercially available MDPE. Figure 1 takes a closer look at impact resistance, showing how parts molded with XUS 58441.00 can absorb more energy and displace further before failing than the MDPE tested. And while our unique, soft touch offering works great as a standalone substrate, it can also help increase softness and impact resistance in blends with MDPE (Figure 2). We’d love to talk with you about this and other innovative opportunities only available from Dow. Table 1: Comparison of XUS 58441.00 and Typical MDPE(1,3) Key Properties Typical MDPE XUS 58441.00(1) Experimental Soft Touch Copolymer XUS 58441.00(1) Implication Melt Index (g/10 min) 5.0 5.0 Familiar processing reduces learning curve for molders Density (g/cc) 0.938 0.887 Significantly softer than PE Melting Temperature (°F) 256 246 Similar, lower melt temperature allows blending with PE Coefficient of Friction Static Kinetic 0.23 0.20 1.01 0.83 Enhanced grip and slip resistance Shore D Hardness 55.9 30.2 Significantly softer than PE Flexural Modulus at 1% Secant (psi) 195,000 6,800 Significantly more flexible than PE ARM Impact Mean Failure Energy (ft.-lbs.)(4) 180 >230 Exceptional impact resistance Figure 1: Instrumented Dart Impact Performance Comparison of XUS 58441.00 and Typical MDPE(1,3) Figure 2: Impact Modification of XUS 58441.00 in Blends with Typical MDPE(1,3,4) 220 3,500 3,000 2,500 2,000 1,500 1,000 Typical MDPE 200 180 160 140 120 100 XUS 58441.00(1) Experimental Soft Touch Copolymer 500 00 5 10 15 20 25 30 35 40 Displacement (mm) 0 10 20 30 40 50 Concentration of XUS 58441.00(1) in Typical MDPE (%) (1) If products are described as “experimental” or “developmental”: (1) product specifications may not be fully determined; (2) analysis of hazards and caution in handling and use are required; (3) there is greater potential for Dow to change specifications and/or discontinue production; and (4) although Dow may from time to time provide samples of such products, Dow is not obligated to supply or otherwise commercialize such products for any use or application whatsoever. (2) The addition of a UV stabilization package to a resin does not completely eliminate the effects of UV exposure. The sole intent is to slow down the rate at which these effects occur. Actual results may vary depending on application and other factors such as resin color, transparency, and additives. Therefore, actual end-use testing is recommended. (3) Data per tests conducted by Dow. Additional information available upon request. Properties shown represent typical values; not to be construed as specifications. Users should confirm results by their own tests. (4) Plaques rotomolded to 0.25 inch and tested via ARM standard method at -40°C. TMTrademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow Force (N) Mean Failure Energy (ft-lbs.)PDF Image | DOW Roto Molding Applications
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