Corning Optical Communications recommends the use of 99% isopropyl alcohol. Lower purity alcohols may leave excessive residue on the fiber. This is the recommended coating removal technique because it is quick and uncomplicated, and produces a well-defined point of coating. both have the same physical characteristics. I'm not an expert here, but I'll throw out what I learned. In the world of fiber optics, there only are two truly critical precision cleaning operations. The first is “prep” before a fusion splice. Both are. Fiber preparation for splicing and termination requires removal of a section of the protective cable elements, such as the jacket, armor (if present), and buffer tubes. This gel must be carefully cleaned as. Effective fiber splice and end face optic cleaning is essential for maintaining the performance and longevity of fiber optic networks. Dust, fingerprint. Can I use IPA Alcohol to clean fiber optic connectors? If IPA alcohol is undesirable for fiber optics, what cleaner can I use? Can I take FCC2 Fluid or Fiber Prep Fluid on my air flight? What is the difference between Type A & Type B Cletops? What is the difference between the Cletop and Cletop-S. Before splicing, according to the material and type of the optical fiber, set the key parameters such as the optimal pre-melting main melting current and time, and the amount of fiber feeding.