You are designing a gold sluice to be used in the Alaska with a slightly tacky polymer mat attached to the trough to which gold powder can stick to be recovered. Name your candidate material to used in the mat along with the physical properties you feel are most important to its functioning and if those properties are inherent in the polymer you select or how you would achieve those properties in the polymer, if they are not inherent. Note that Alaska routinely gets down to -40 C in the winter, experiences very long days in the summer with lots of mosquitos, has relatively high levels of cosmic radiation due to lower altitude of the Earth's magnetic field, and is fairly close to Russia.