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IOTA 203 is a methyl low-hydrogen silicone oil containing reactive Si–H functional groups along its molecular chain. In the presence of a catalyst, it can undergo hydrosilylation or dehydrogenation reactions with double bonds, hydroxyl groups, and other reactive sites. Colorless and odorless, it offers controlled reactivity and stable performance. It is widely used as a basic raw material for foam stabilizers, defoamers, water-soluble silicone oils, ultra-clean ceramic anti-fouling agents, and as a crosslinker for addition-cure silicone rubbers.
| Parameter | IOTA 203-1 | IOTA 203-2 | IOTA 203-3 | IOTA 203-4 |
|---|---|---|---|---|
| Viscosity (25°C, mm²/s) | 50–120 | 50–120 | 50–120 | 50–120 |
| Hydrogen content (%) | 0.18 | 0.36 | 0.50 | 0.75 |
| Density (25°C, g/cm³) | 0.98–1.10 | 0.98–1.10 | 0.98–1.10 | 0.98–1.10 |
| Refractive index (25°C) | 1.390–1.410 | 1.390–1.410 | 1.390–1.410 | 1.390–1.410 |
✅ Multiple hydrogen content options – four grades (0.18%, 0.36%, 0.50%, 0.75%) for different crosslinking densities and reactivity needs
✅ Reactive Si–H functional groups – participates in hydrosilylation, dehydrogenation, and other reactions
✅ Colorless and odorless – operator-friendly, no impact on end-product smell
✅ Controlled reactivity – selective reactions with appropriate catalysts
✅ Stable performance – consistent batch quality and reliable properties
✅ Moderate viscosity (50–120 mm²/s) – balances flowability, wettability, and processability
1. Foam Stabilizer
Used in polyurethane foam systems to regulate cell structure and improve foam uniformity.
2. Defoamer
Acts as an active defoaming component for rapid foam breaking and sustained foam suppression.
3. Crosslinker for Addition-Cure Silicone Rubber
Enables crosslinking via hydrosilylation between Si–H and vinyl groups.
4. Ultra-Clean Ceramic Anti-Fouling Agent
Forms a hydrophobic, stain-resistant layer on ceramic surfaces for improved anti-fouling and easy-clean performance.
5. Raw Material for Water-Soluble Silicone Oils
Used to prepare polyether-modified silicone oils via reaction with allyl polyethers, etc.
Store sealed in a cool, dry place away from strong oxidizers, acids, and alkalis
Packaging specifications: customizable upon request
✅ Four hydrogen content grades – precisely match your requirements
✅ Reactive functional groups – versatile reaction pathways
✅ Colorless and odorless – safe and environmentally friendly
✅ Stable performance – consistent batch-to-batch quality
✅ Multi-functional – covers foam stabilization, defoaming, crosslinking, and anti-fouling
For samples, grade selection advice, or technical support, please feel free to contact us.
