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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PC2521
SiSiB® PC2521

3-Ureidopropyltriethoxysilane (50% in Methanol)

SiSiB® PC2521 is a bifunctional organosilane having a reactive organic ureido group and a hydrolyzable inorganic triethoxysilyl group. 


The dual nature of its reactivity allows SiSiB® PC2521 to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermosets, thermoplastics, elastomers), functioning as an adhesion promoter and as a silane surface modifier. SiSiB® PC2521 is a 50% solution of silane in methanol; it is a colorless liquid with an alcohol-like odor and is soluble in alcohols, ketones, esters or aromatic hydrocarbons. SiSiB® PC2521 gamma Ureidopropyltriethoxysilane (50% in Methanol) is the equivalent of Momentive's A-1160, Dow's Z-6676, Evonik's Dynasylan 2201, ShinEtsu's KBE-585 silane.


SiSiB® PC2521

Technical Data




CAS No.

116912-64-2 or 23779-32-0

EINECS No.

245-876-7

Formula

C10H24N2O4Si

Molecular Weight

264.4

Boiling Point

No data °C [760mmHg]

Flash Point

14°C



Color and Appearance

Colorless transparent liquid

Density 25/25°C

0.920

Refractive Index

1.386[25°C]

Purity

50% in Methanol




We also can supply pure gamma-Ureidopropyltriethoxysilane (CAS 23779-32-0) without methanol solvent.



Application


  • SiSiB® PC2521 can be used with such polymers as epoxy, phenolic, furan and melamine resins, polyurethanes, PA, PBT, PE, EVA, PP, PVB, PVAC, acrylics and silicones.


  • SiSiB® PC2521 can be used as a size constituent of finish for glass fiber/glass silicone fabric composites.


  • SiSiB® PC2521 can be used as an additive to phenolic, furan and melamine resins for foundry resins and abrasives.


  • SiSiB® PC2521 can be used as an additive for sealants and adhesives.


  • SiSiB® PC2521 can be used as an silicone additive and/or primer for paints and varnishes to improve adhesion to the substrate.


  • The most important effects which can be achieved using PC2521 are improvements in product properties, such as:


  • Improved mechanical properties: e.g. flexural strength, tensile strength, impact strength, modulus of elasticity.


  • Improved resistance to moisture and corrosion.


  • Higher temperature of deflection under load.


Packing and Storage


  • SiSiB® PC2521 is supplied in 180Kg steel drum.


  • In the unopened original container SiSiB® PC2521 has a shelf life of one year in a dry and cool place.


Documents

DownloadSiSiB® PC2521 Technical Data Sheet
DownloadSiSiB® PC2521 Safety Data Sheet
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