Silicone Oil 200 cSt – Polydimethylsiloxane for Molds & Industrial Lubrication

Premium Chemically Inert Silicone Oil for Professional Mold Release and Lubrication Applications

Silicone Oil 200 cSt is a colorless, chemically inert polydimethylsiloxane (PDMS) fluid with a viscosity of 200 cSt and a density of 0.970 g/cm³ at 25°C. The product has a flash point of over 300°C, a pour point of -50°C, and a low surface tension of 21.0 mN/m, ensuring excellent wetting properties on virtually any surface. Silicone Oil 200 cSt is ideally suited for applications where chemical inertness, water repellency, electrical insulation, and thermal stability over a wide temperature range are essential. The 200 cSt viscosity offers a good balance between fluidity and film formation, making this product versatile for use as a release agent, additive, lubricant, and anti-foaming agent.

Key Benefits

• Flash Point >300°C: Exceptionally high thermal stability – safe for use at elevated temperatures in most industrial processing operations.
• Viscosity 200 cSt at 25°C: Optimal film thickness for lubrication and release applications – fluid enough for even application, viscous enough for durable protection.
• Pour Point -50°C: Retains its liquid properties at low temperatures – suitable for applications in cold environments or seasonal outdoor use.
• Low Surface Tension 21.0 mN/m: Wets surfaces quickly and completely – improves release properties and reduces the chance of air entrapment in molding applications.
• Food Grade compliant with EC 1935/2004 and FDA 21 CFR 173.340: Certified for applications requiring indirect food contact – usable in the food industry as an anti-foaming agent or lubricant.
• Chemically Non-Reactive: Does not react with addition or condensation silicones, most plastics, and elastomers – safe to use as an additive in silicones without undesirable side reactions.

Typical Applications

• Release agent for rubber, polyurethane, epoxy, and metal injection molding – applied neat or as part of a compounded formulation
• Additive in addition and condensation silicones (1–10%) to reduce hardness and increase fluidity – for smoother, more flexible end products
• Anti-foaming agent in non-aqueous systems – highly effective in small quantities
• Lubricant for plastic and elastomer surfaces – excellent lubricating properties without material degradation
• Electrical insulation and damping fluid in electrical and electronic equipment
• Active ingredient in automotive and furniture polish, in emulsion and solvent-based formulations

Processing Instructions (as an additive in silicones):

1. Weigh the desired amount of component A of your silicone and add component B according to the mixing ratio information sheet.
2. Stir the mixture thoroughly.
3. Add the silicone oil to the silicone mixture and stir again. Vary between 1 and 10% oil by total weight. An addition of approximately 8% will reduce the Shore A hardness by about 3 to 5 points.
4. Keep the percentage below 10%: more than 10% oil can unacceptably reduce the ultimate strength of the cured silicone.
5. Process the mixture within the pot life of your silicone.

Conformity & Certification

The silicone oil PC grade (food-safe version) complies with EC 1935/2004 and EC 10/2011 for materials in contact with foodstuffs, with FDA 21 CFR 173.340 (anti-foaming agent as a secondary direct food additive), and with the BfR recommendation "XV Silicones". For standard industrial applications, the standard technical datasheet values apply.

Produced by AToro B.V., a specialist in high-quality silicones and silanes for industrial and technical applications, based in the Netherlands.

Professional Support

Are you unsure about the correct viscosity for your application, or do you have questions about the usability of silicone oil at elevated temperatures or in a certified food-grade environment? Contact us for technical datasheets, processing manuals, or product advice.