Topcoat fluorocarbon aliphatic ti o ni apa meji pẹlu alefa crosslinking giga ti a ṣe ti resini tetrafluoro fluorocarbon, oluranlowo itọju isocyanate aliphatic ati awọn pigments resistance oju ojo giga.Awọn akoonu fluorine jẹ diẹ sii ju 24%.
Ni ibamu pẹlu awọn ibeere imọ-ẹrọ ti JT/T 722-2008 fun ọna opopona ati ọna irin afara anticorrosive, awọn ibeere imọ-ẹrọ fun ideri aabo afara irin oju-irin ati ipese ibora TB/T 1527-2001, ati ti a ti sopọ mọ agbelebu fluor resin bo HG/T 3792 -2014.