Special treatment silicone-free - SI Application area Tube connectors and valves which primarily come into contact with paints and varnishes may not have any silicon compounds on the media-contacting surfaces because these would prevent wetting of the surfaces. Quality Surface cleanliness < 33mg/m2 TOC per ASTM* G93-93 , Level B. Every order is traceable; assembly and testing are done in a special, clean environment. SERTO specifications CSO-OX. The whole production process is silicone-free. *American Society for Testing and materials Scope of supply Parts are individually packaged, in weld-sealed PE bags, special label, pre-assembled for installation, initial lubrication Lubricant Where necessary, a guaranteed silicone-free lubricant is used. Product range Unions and valves in - brass - chem. nickel-plated brass - stainless steel Other products on request. Ordering information SERTO components which need to be cleaned and supplied silicone-free according to CSO-OX must be clearly marked with SI after the material number or the material description when ordering. e.g.: SO 51121-8-1/4 SI or 058.1101.170.SI