SiSiB is a leading manufacturer of silanes and silicones in the world with more than 30 years’ history. Silanol terminated polymer is medium and high viscosity hydroxyl terminated linear polydimethylsiloxane, also known as OH polymer.
The fundamental building block of a silicone sealant is polymeric siloxane. This is often represented by silanol terminated polydimethylsiloxane. Silanol terminated polymer SiSiB® PF1070 is the base polymer for RTV silicone rubber, which has been widely used in sealants, potting adhesives, etc. They can also be used in the modification of organic polymers such as polyester, polycarbonate, polyurethane, epoxy resin, etc.
SiSiB, a reliable silicone manufacturing company, provides a wide range viscosities of OH polymer, ranging from 750 to 500,000 cst. They are recommended for formulating formulation of one component, moisture curing RTV silicone sealants, and two-component, condensation curing RTV silicone compounds.
OH Polymer SiSiB® PF1070 can be cured with silane crosslinkers such as alkoxy silanes, acetoxy silanes, oxime silanes and enoxy silanes. The reaction is aided by the use of organotin catalyst, like DBTDA or DBTDL.
Medium viscosity silanol terminated silicones can impart water repelling properties and paper softness to natural textiles such as cotton fabrics.
Silanol terminated polymer is also useful in personal care formulations like skin creams, hair care products, color cosmetics.