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Supplier Homepage > Products > 3-Aminopropyltriethoxysilane (APTES) CAS NO 919-30-2
3-Aminopropyltriethoxysilane (APTES) CAS NO 919-30-2
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last update: 2018-05-01 19:40

Silane coupling agent KH-550

Product: Silane coupling agent KH-550

Chemical name: 3-Aminopropyltriethoxysilane

CAS No. : 919-30-2

Molecular Formula: (C2H5O)3SiC3H6NH2

Foreign Brand: Union Carbide Corp:A-1100,Dow Corning: Z-6011,ShineEtus:KBM-903


KH-550 is a versatile amino-functional coupling agent used over        a broad range of applications to provide superior bonds between inorganic substrates and organic polymers.The silicon-contain portion of the molecule provides strong bonding to substrates.                         

The primary amino function reacts with a wide array of  thermoset,thermoplastic and elastomeric materials.   

Typical physical properties:

Appearance: colorless transparent liquid

Molecular weight:221.40

Density(25): 0.9450-0.9550

Refractive index(n 25℃): 1.420+0.0005

Boiling point: 220℃

Flash point: 96℃



KH-550 can soluble in many organic solvents,such as ethanol, ethyl ether, toluene, also can react with CCl4 and be hydrolyzed into silicon alcohol under the influence of water.


Plastic products,Rubber products,Coating,Magnetic materials,

Ink,Adhesive,Composite materials,Foundry and Synthesis

of amino silicone oil.

Application object:

1.Resin: Phenolic aldehyde,Urea-formaldehyde,Furan,Nylon,

polyurethane,Unsaturated polyester resin,Alkyd resin,Acrylic resin and Natural ruber,SBR,Neoprene,ABR,EPDM rubber,PE,


2.Filler: Talcum powder(Talc),Kaolin,Mica,Carbon-white,

Wollastonite,Fibreglass,Al(OH)3,Mg(OH)2,Metal and

Metal oxide


Usable life and storage:

when stored at or below 25℃ in the original sealed containers, this product has a usable life of 12 months from the date of production.

Sealed in container,keep the warehouse cool,dry and draughty.avoid dampness and water,away form fire and heat source.


sealant                                                                                                                          coating 



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200KG plastic drum                                                                                                     warehouse




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