Hexamethyldisiloxane

Hexamethyldisiloxane (CAS 107-46-0 ), commonly referenced as HMDSO, is a low-viscosity silicone fluid used as a solvent, carrier, and surface-modifying agent across specialty chemical manufacturing. It conditions surfaces, aids dispersion of silicone-based materials, and supports film formation in coating and personal care applications. In silicone coatings and release liners, it acts as a reactive diluent. The material functions as a processing solvent, improving flow and substrate wetting during application. Personal care formulators use it as a lightweight carrier fluid in skin-feel emollients and dry-touch formulations. It is ideal for hair conditioning products where fast evaporation and a non-greasy finish are required. In adhesives and sealants manufacturing, it functions as a solvent for silicone polymers and as a surface primer. The chemical promotes adhesion on low-energy substrates. Plasma-enhanced chemical vapor deposition processes use HMDSO as a precursor to deposit hydrophobic or barrier silica coatings on plastics and films. Hexamethyldisiloxane is supplied as a clear, low-viscosity liquid in drum and IBC quantities. Technical and high-purity grades are available, with purity levels typically ranging from 97% to 99%+. Cosmetic-grade material meeting relevant purity standards is also available for personal care applications. Our supply chain ensures consistent quality and reliable delivery for industrial and laboratory requirements. Contact us for supply of Hexamethyldisiloxane Request Quote

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