Three-strand RTD wire features excellent resistance to abrasion, chemicals, and moisture. Each silver-plated copper strad is color-coded with fluorinated ethylene propylene (FEP). The three starnds are twisted to increase flexibility and minimize electromagnetic noise, then jacketed in white FEP. The FEP insulation provides temperature resistance up to 400°F, and chemical resistance to solvents, acids, and oils. Additionally, the insulation protects the wire from thermal aging, while maintaining its strength and flexibility.