In aerospace, precision instrumentation, and high-temperature industrial equipment, conventional lubricants often fail under extreme thermal stress. IOTA’s IOTA 255 Phenyl Methyl Silicone Oil is engineered specifically to meet this challenge.

IOTA 255 (Polymethylphenylsiloxane, CAS: 63148-58-3) serves as an ideal substitute for Dow Corning DC510, DC550, and DC710. Thanks to the incorporation of phenyl groups, it achieves exceptional thermal stability across a massive temperature range: with a pour point as low as -120°C and the ability to withstand continuous operation above 300°C, its working range spans from -110°C to 320°C.

In practical applications, IOTA 255 is widely used as a high-temperature heat transfer fluid, dielectric medium, damping and shock-absorbing fluid, and as a base oil for high-temperature lubricants and greases. Its outstanding thermal stability, oxidation resistance, radiation resistance, and hydrolytic stability have earned it continuous recognition across the chemical, electronics, and machinery sectors.