In general, the aluminum plate antenna will be damaged by salt fog erosion and aging in the coastal areas for less than 2 ~ (3) years and more than 4 ~ (6) years.
The most obvious example is the cable television (CATV) in Taiwan, which was built earlier than the mainland, it is estimated that there are approximately 1,000 satellite television receiving antennas throughout the island, all of which were completed in the mid-1980s and were all aluminium-plate antennas. By the early 1990s, replacement of these antennas had begun, this time it has been converted to SMC Moulded Antenna (for which warder has supplied hundreds of antennas) . SMC Molded Antenna Service Life, generally more than 15 years; Prodlin 1985 Trial Manufacture of SMC molded antenna is still in normal operation, they are every year to withstand the typhoon and rainstorm.