LEYBONOL PFPE oils are synthetic oils which are only composed of carbon (C), fluorine (F) and oxygen atoms (O). The existing C-O and C-F bonds are highly stable. 
For this reason PFPE oils are practically inert against all chemical and oxidising influences and have a high thermal stability. Perfluorinated polyethers are used when pumping strongly reactive or oxidizing substances like oxygen, ozone or nitrogen oxides as well as reactive substances like halogens or hydrogen halide.