An addition to the PTFE thread market, Solar Thread II, from Pennsylvania Thread Co., maintains 100 percent of its strength after years of exposure to sun, rain, chemicals, UV radiation and salt. It is ideal for boat covers, awnings, tents, filtration and other outdoor sewn applications. The thread offers the same warranty as the competition. It is available in 1,400, 1,800, 2,400 and 3,600 deniers. Colors include white and black, with more to follow.