1. This provides more water and impact resistance , hardness, rigidity and tensile strength. 2. This molecular-oriented bi-axial high performance version combines high strength with extra impact resistance . 3. Poly carbonates have one of the highest impact resistance values. 4. Manufacturers use additives to improve impact resistance , and to prevent ultraviolet damage and color fading. 5. However in some cases a heavier type was used if additional impact resistance was needed. 6. Significantly higher impact resistances are realized when geotextiles are placed above or below the geomembrane. 7. :I'd go with coated polycarbonate, to get both polycarbonate's impact resistance and the coating's scratch resistance. 8. "' Izod impact testing "'is an ASTM standard method of determining the impact resistance of materials. 9. _improvements in the impact resistance of the nose-cone. 10. Thicker geomembranes also display higher impact resistances .
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