The newly developed Carbon Hydroxy Silicone Oil IOTA 28300 (α,ω-Bis(3-(2-hydroxyethoxy)propyl)polydimethylsiloxane), with its unique Si-C bond structure, has become an ideal choice for modifying polyurethane, polyester, and epoxy resins. Compared to traditional Si-O-C bond modifications, IOTA 28300 significantly improves the hydrolysis resistance of materials, making it suitable for high-humidity or long-term water-exposure environments.

Key Advantages

✅ High Reactivity: Hydroxyl value of 1.60~2.00 mmol/g, enabling efficient reactions with isocyanate, epoxy groups, etc.
✅ Superior Hydrolysis Resistance: Si-C bonds offer greater stability than Si-O-C bonds, extending material lifespan.
✅ Low Viscosity for Easy Processing: 30~50 mm²/s (25°C), facilitating mixing and coating.

Typical Applications

• High-Performance Polyurethane Coatings: Enhances weather resistance for marine and automotive coatings.

• Epoxy Resin Encapsulants: Improves moisture resistance in electronic components.

• Polyester Fiber Modification: Enhances softness and anti-static properties.

Packaging & Storage: 25L/200L iron drums, 12-month shelf life.