Atmer 190 Sodium alkyl sulfonate Ciba Antistatic agent Polyvinyl Chloride (PVC) PU - Thermoplastic, TPU Styrene copolymers Antistatic Agent for Styrenics, Rigid PVC and TPU Atmer 190 is an highly effective internal antistatic agent for styrenics, rigid PVC and TPU and has wide food contact approvals (details on request). Sodium alkyl sulfonate Atmer 190 is an internal antistatic agent used in sheet extrusion and injection molding. Atmer 190 is not recommended to be used for transparent applications because Atmer causes opacity. Atmer 190 can be used as well as external antistatic agent (2% Atmer 190 in 98% water). Internal antistatic agents act in two ways: building up a conductive path to bring charged particles into contact and as a lubricant or demolding agent in the post-extrusion process. An internal antistatic agent is incorporated into the polymer matrix during the extrusion process. Upon extrusion, the additive migrates to the surface of the polymer - because its defined incompatibility with the polymer - where the additive builds up an uniform layer on the polymer’s surface. The hydrophilic end projects out of the polymer, the lipophilic anchors in the polymer. The protruding hydrophilic end absorbs moisture from the surrounding air and builds up a conductive path, reducing the surface resistivity. (This explains why mainly too high concentrations of antistatic agents will have an influence printing and sealing properties and why antistatic agents are hygroscopic and have to be handled accordingly.) Using Atmer 190 reduces dust contamination, affecting both appearance and performance of the end product. Handling problems during transport, storage and packaging are often reduced. Sodium alkyl sulfonate. Used as a highly effective internal antistatic agent for styrenics, rigid PVC and TPU. Not recommended to be used for transparent applications. Can be used as an external antistatic agent. Reduces dust contamination.