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Hydroxyl silicone oil IOTA 206

Hydroxyl silicone oil is made by polymerization of siloxane monomers, the molecular silicone materials have hydroxyl groups at both ends. The structural formula is as follows:HO-Si (CH3) 2 O [Si (CH3) 2 O] n Si(CH3)2-OH

Colorless transparent liquid with excellent electrical insulating properties and resistance to high temperature, high flash point, low freezing point, long-term used -50 °C~ +250°C conditions, low the viscosity-temperature coefficient, high compression ratio, low surface tension, hydrophobic moisture resistance, chemical inertness, physiologically inertness.


Appearance : colorless transparent liquid.
Viscosity (25°C, mpa.s): 25~30
Hydroxyl content (%): 8 - 9


Depending on the hydroxyl content and viscosity, respectively for different industries .
1. Small molecule hydroxyl silicone oil (25 ~ 40cst, hydroxyl content of about 8-9%) is an excellent control agent of silicone rubber, it not only simplifies the process of silicone rubber to improve the processing performance ( reduce heat treatment ) but also increased the transparency of products, improved working conditions, when we use it to alter dihydroxy diphenyl silane .
2. New development applications.

Usually with the curing agent to achieve the crosslinking, it must be fixed by means of a coupling agent for the release paper, generally the curing agent is about 3 to 5% of gum base, the coupling agent is about 0.5 to 1 % of gum base.

Hydroxyl silicone oil can not be mixed with high temperature water vapor, acid/alkali substances, alkoxysilanes, otherwise there is a tendency curing and viscosity changes.

Packaging and Storage:
1. The product should be stored in airtight plastic bucket clean not in contact with acid, alkali substances;
2. Stored at room temperature and ventilated shade;
3. According to the non –toxic and non-dangerous goods storage and transportation.

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