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Hydroxy silicone oil (linear polydimethylsiloxane with hydroxyl end groups)

Basic information

Chinese name: Hydroxy silicone oil (linear polydimethylsiloxane with hydroxyl end groups)

English name: Hydroxy silicone oil

Molecular formula: HO[(CH3)2SiO]nH CAS: 70131-67-8

Technical indicators (Specification)

Appearance  colorless or light yellow transparent oily matter(n=5-7)
Viscosity (25℃)  ≤20mm2/s
Ring body content%  20~30
Hydroxyl content%  6.0~12.0
Density (at 25℃)  0.98 g/mL
Boiling point (℃)  182


This product can be used as a structural control agent for silicone rubber and a finishing agent for fabrics. It can significantly improve the smoothness and seam performance of polyester threads, high temperature resistance, anti-static properties, and finish polyester chemical fiber fabrics to make the fabric soft and straight. , Smooth and elastic, smooth and plump, and can give the fabric waterproof and water repellent properties, so it can be used for the anti-adhesion treatment of the production of high-grade paper, and used as a waterproof, soft and anti-adhesion treatment agent for fabric, leather and paper.

Hydroxy silicone oil with a molecular weight of 50,000 to 60,000 is the base rubber of room temperature vulcanized silicone rubber. Low-viscosity hydroxy silicone oil is an excellent structure control agent in silicone rubber processing, which can replace diphenyl silicone diol, simplify the process and improve the process performance.

Packaging, Storage And Transportation

Packed in 50L and 200L plastic drums. Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The warehouse temperature should not exceed 30°C. Should be stored separately from acids. The lighting, ventilation and other facilities in the storage room should be explosion-proof. Unload gently during transportation to prevent damage to packaging and containers. Transport as non-dangerous goods.

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