Since LS Bell Hammer and LS Bell Hammer GOLD are the oils of the 4th petroleum that are hard to volatilize, they are the oils that have the least effect on resins, rubbers and seals among general fats and oils.
However, there are countless types of rubber, resin, and plastic used in industrial products. As an oil table is prepared as a reference material, please check it and use it at your own risk.
Oil resistance table: http://www.suzuki-kikoh.com/data/tech/oilprooftable.pdf?20180730052325
Reference video: https://www.youtube.com/watch?v=QQUjU6RQJ78