Hexamethyldisiloxane

Hexamethyldisiloxane (CAS 26298-61-3), also known as Cosmetic Fluid 8108-OH, is a low-molecular-weight silicone fluid used across personal care, industrial, and polymer manufacturing sectors. It functions as a foam suppressant, lubricant, and surface modifier, delivering consistent performance in both formulated products and process applications. In personal care formulations, it acts as a lightweight carrier.

It serves as a skin-feel modifier in serums, primers, and color cosmetics, leaving no greasy residue. Industrial cleaning and metalworking operations use it to control foam in cutting fluids and process baths. Uncontrolled foam disrupts throughput in these environments. Polymer and resin manufacturers incorporate it as a processing aid and mold release component, improving surface finish and reducing cycle times.

In lubricant formulations, it provides a stable, low-viscosity base layer for precision applications where conventional mineral oils introduce contamination risk. This ensures high performance in sensitive systems. Hexamethyldisiloxane is supplied as a clear, low-viscosity liquid in standard drum and IBC packaging. It is available in cosmetic-grade and technical-grade specifications to meet various purity requirements.

Buyers sourcing for regulated cosmetic applications should confirm compliance documentation against relevant regional standards before procurement. This ensures the material meets all necessary safety and quality protocols.