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Low-viscosity, linear polydimethylsiloxane (PDMS) fluid with excellent thermal stability.
Non-volatile and hydrophobic, providing long-term performance in demanding environments.
Highly compatible with organic polymers, oils, and common industrial solvents.
Colorless, odorless, and chemically inert under normal processing conditions.
Meets FDA 21 CFR 178.3570 requirements for incidental food contact applications.
Lubricant additive in precision mechanical assemblies and instrumentation.
Carrier fluid in pesticide formulations and agricultural adjuvants.
Release agent component for rubber and plastic molding compounds.
Base fluid in specialty personal care emulsions and topical formulations.
Dielectric fluid in low-power electronic potting and encapsulation systems.
| Chemical Type | Linear polydimethylsiloxane (PDMS) |
| Product Form | Liquid |
| Appearance | Clear, colorless liquid |
| Viscosity (25°C, cSt) | Approx. 500 |
| Density (25°C, g/cm³) | Approx. 0.97 |
| Refractive Index (25°C) | 1.402–1.406 |
| Volatile Content (wt%) | <1.0 |
| Flash Point (PMCC, °C) | >300 |
Q1: What is the primary functional role of OFX-0309 in industrial formulations?
A: OFX-0309 is a reactive silicone fluid designed primarily as a surface modifier and release enhancer. It imparts improved slip, leveling, and substrate wetting characteristics to coatings, inks, and adhesives—especially in demanding high-solids or low-VOC systems where surface defects must be minimized.
Q2: Is OFX-0309 compatible with common crosslinking chemistries used in thermoset coatings?
A: Yes—OFX-0309 contains reactive silane functionality that enables covalent incorporation into thermosetting networks based on melamine, urethane, epoxy, and acrylic crosslinkers. This promotes permanent surface enrichment without migration or blooming over time.
Q3: How does OFX-0309 differ from non-reactive silicone fluids in performance applications?
A: Unlike non-reactive silicones, OFX-0309 chemically anchors into the cured film matrix. This eliminates issues such as intercoat adhesion loss, print-through, or contamination of downstream processes—making it especially suitable for multi-layer industrial coating lines and high-performance automotive refinish systems.
Q4: What are typical handling and storage recommendations for OFX-0309?
A: Store in original unopened containers under cool, dry conditions away from moisture and strong oxidizing agents. The material is moisture-sensitive due to its alkoxy silane groups; prolonged exposure to humid air may cause viscosity increase or gelation. Use within 12 months of receipt for optimal performance.
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