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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PF1070-60000
SiSiB® PF1070-60000

OH Polymer

SiSiB® PC1070-60000 (CAS No. 70131-67-8) is a silanol terminated polydimethylsiloxane with 60,000 cSt viscosity. It serves as a base polymer for RTV-1 silicone sealants, offering a high viscosity solution for applications requiring thicker formulations and greater stability.

SiSiB® PF1070-60000

Introduction


SiSiB® PC1070-60000 OH polymer is silanol terminated polydimethylsiloxane of 60,000cSt viscosity; it is used as base polymer for the production of RTV silicone sealants.


Typical Physical Properties


CAS No.

70131-67-8

Color and Appearance

Colorless transparent liquid

Density 25/25°C

0.96-0.98

Refractive Index 25°C

1.401-1.403

Viscosity

60,000cSt


Applications


  • Condensation cure one-part and two-part RTV systems are formulated from silanol terminated polymers with molecular weights ranging from 15,000 to 150,000. One-part systems are the most widely used. One-part systems are crosslinked with moisture-sensitive multi-functional silanes in a two stage reaction. In the first stage, after compounding with fillers, the silanol is reacted with an excess of multi-functional silane. The silanol is in essence displaced by the silane.


  • The reactivity of silanol fluids is utilized in applications other than RTV’s. Low viscosity silanol fluids are employed as filler treatments and structure control additives in silicone rubber compounding. Intermediate viscosity, 1000-10,000 cSt. fluids can be applied to textiles as durable fabric softeners. High viscosity silanol terminated fluids form the matrix component in tackifiers and pressure sensitive adhesives.


Packing and Storage


SiSiB® PF1070-60000 OH polymer is supplied in 190Kg steel drum or 950Kg IBC container.


In the original unopened packaging, SiSiB® PF1070-60000 polymer has a shelf life of 18 months in a dry and cool place.


Notes


All information in the leaflet is based on our present knowledge and experience. We reserve the right to make any changes according to technological progress or further developments. Performance of the product described herein should be verified by testing.


We specifically disclaim any other express or implied warranty of fitness for a particular purpose or merchantability. We disclaim liability for any incidental or consequential damages.


Please send all technical questions concerning quality and product safety to: support@SiSiB.com.



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