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1,3,5 Trimethyl 1,3,5 Tris(3,3,3 Trifluoropropyl)cyclotrisiloxane
SiSiB® PC9718 is also named as D3F, 1,3,5-tris(trifluoropropyl)trimethylcyclotrisiloxane, (3,3,3-Trifluoropropyl)methylsiloxane cyclic trimer.

Technical Data
CAS No. 2374 14 3
EINECS No. 219-154-7
Formula C12H21F9O3Si3
Molecular Weight 468.54
Boiling Point 95°C [3mmHg]
Flash Point 121°C
Melting Point 35°C

Color and Appearance Translucent to white waxy solid
Density 25/25°C 1.240
Refractive Index 1.3710
Min. Purity 99.5%


SiSiB® PC9718 is used for manufacturing of fluoro silicone rubber (fluorinated silicone rubber, FSR), fluorosilicone fluid (fluorinated silicone fluid).

Fluorosilicone Rubber (fluorinated silicone rubber) has the basic silicone rubber properties of resilience, high/low temperature stability and resistance to aging and degradation from sunlight and ozone. The Aerospace Industry has a particular interest in Fluorosilicone compounds as they resist a series of silicate ester industrial coolants fluids. It is also resistant to jet fuel, engine oil, silicone oils and hydraulic fluids.

Packing and Storage
SiSiB® PC9718 cyclosiloxane is supplied in 220Kg steel drum.

In the unopened original container SiSiB® PC9718 has a shelf life of one year in a dry and cool place.

SiSiB SILICONES, as an excellent silicone supplier, offers a wide range of custom silicone products for you to choose from.