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Hydroxyl-Terminated Polymethylsiloxane IOTA 1203, launched by IOTA, is a general-purpose low-viscosity hydroxyl silicone oil. With silanol groups as terminal functional groups, the product appears as a colorless transparent liquid with low viscosity, high hydroxyl content, and excellent reactivity. Thanks to this structural feature, IOTA 1203 serves as an efficient structural control agent in silicone rubber processing, effectively improving the processing performance and storage stability of compounded rubber. It can also be used as a softening and anti-blocking agent for fabrics, paper, and leather, imparting smooth, soft, and non-tacky surface properties to these substrates.
Appearance: Colorless transparent liquid Viscosity (25 degrees Celsius): Less than or equal to 30 mm2/s Hydroxyl Content: Greater than or equal to 8.5 percent
First, high hydroxyl content: With a hydroxyl content greater than or equal to 8.5 percent, it has a high density of terminal functional groups and strong reactivity, delivering significant effects even at low dosage. Second, low viscosity for easy dispersion: With a viscosity of less than or equal to 30 mm2/s, it has good flowability, facilitating metering, addition, and uniform dispersion in systems, suitable for continuous industrial production. Third, strong versatility: As a general-purpose hydroxyl silicone oil, it offers broad formulation adaptability and can be used with various silicone rubber systems and auxiliaries. Fourth, clean appearance: A colorless transparent liquid with no obvious impurities, suitable for end products with requirements for color and transparency. Fifth, dual functionality: It can serve both as a structural control agent in silicone rubber production and as a surface treatment agent in the textile, paper, and leather industries, covering a wide range of applications.
Structural control agent for silicone rubber: Used during the processing of compounded rubber and gum base to inhibit the structuring effect between reinforcing fillers such as silica and polysiloxanes, improving the processing flow and plasticity of the rubber compound, reducing hardness rebound during storage, and extending shelf life. Fabric softening agent: Used for the softening finishing of various fabrics including cotton, polyester, and polyester-cotton blends, imparting a smooth and soft hand feel, improving sewability and wearing comfort. Paper softening and anti-blocking agent: Used for paper surface treatment to improve paper softness and smoothness, with certain anti-blocking and antistatic effects. Leather anti-blocking and softening agent: Used for leather fatliquoring, finishing, and anti-blocking treatment to improve hand feel and surface smoothness, reducing adhesion between leather surfaces.
First, this is a hydroxyl-terminated polysiloxane. The silanol groups have certain reactivity, so prolonged contact with moisture and co-storage with acidic or alkaline substances should be avoided to prevent condensation or viscosity changes. Second, it is recommended to store in a sealed container in a cool, dry, and well-ventilated warehouse, away from fire and heat sources. Third, when used as a structural control agent, the dosage should be determined by small-scale trials based on the rubber compound system and the type and amount of fillers. Verification before scale-up production is recommended. Fourth, for fabric, paper, and leather treatment, it can be formulated into an emulsion or solution according to process requirements. Please verify specific concentrations and process conditions against your actual production line. Fifth, Product specifications are subject to IOTA's outgoing quality inspection reports. Please check the batch test data before use.
IOTA's hydroxyl silicone oil series also offers IOTA 1203M Linear Hydroxyl Silicone Oil, which can meet customers' selection needs for different molecular structures and application scenarios. Please contact us for detailed technical parameter comparisons.
IOTA is committed to providing customers with stable, high-quality silicone raw materials and complete application solutions. If you need to obtain samples, certificates of analysis, Technical Data Sheets (TDS), or application formulation guidance for Hydroxyl-Terminated Polymethylsiloxane IOTA 1203, please feel free to contact our sales and technical support team.
