Crosile® 189

Identification & Functionality

Chemical Family

Silanes

Chemical Name

(3- Mercaptopropyl) trimethoxysilane

Plastics & Elastomers Functions

Coupling Agent

Chemical Formula

C6H16O3SSi

CAS No.

4420-74-0

EC No.

224-588-5

Technologies

Elastomers,

Plastics

Product Families

Elastomers — Elastomer Additives

Surface Modifiers

Plastics — Polymer Additives

Surface Modifiers

Synonyms

r-Mercaptopropyltrimethoxysilane,

A-189(GE), MTMO(Degussa), Z6062(Dowcorning), KH580, S810, M8500(Chisso), KBM803.

Chemical Structure

Features & Benefits

Materials Features

Corrosion Resistant,

Good Compression Set,

Good Electrical Properties,

Good Mechanical Properties,

Good Thermal Stability,

Low Odor,

Moisture Resistant

Applications & Uses

Markets

Adhesives & Sealants,

Paints & Coatings,

Printing & Packaging

Applications

Adhesives & Sealants — Other Adhesives & Sealants Applications

Printing & Packaging — Packaging Coatings

Primers & Lacquers

Paints & Coatings — Packaging Coatings

Primers & Lacquers

Applications

Silane Coupling Agent Crosile®189 a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group

Improve properties as below:

• Compression set
• Improved mechanical properties
• Improved moisture and corrosion resistance
• Improved electrical properties
• Increased thermal resistant

 

Excellent protection for metal surface:

3-Mercaptopropyltrimethoxysilane has special effect on the metal surface rust inhibitor.

With its thiol functional group, it can strengthen the surface corrosion resistance and oxidation resistance and increase the adhesion with resin, when face gold, silver and copper surface processing.

 

Application：

Glass composites: as a finish or a size ingredient

Glass and metal primer

Sealants and adhesives: as a primer, additive, or for chemical modification of the polymer

Mineral filled polymers: for pretreatment of fillers and pigments or as an additive crosslinking of polymers

Properties

Physical Form

Liquid

Specifications

	Value	Units	Test Method / Conditions
Content	min. 97.0	wt. %	-
Alcohol Content	max. 2.0	wt. %	-
Specific Gravity (25°C)	1.020 -1.060	-	-
Refractive Index (25°C)	1.440-1.445	-	-

Technical Details & Test Data

Properties

• Compression set
• Improved mechanical properties
• Improved moisture and corrosion resistance 
• Improved electrical properties 
• Increased thermal resistant

Chemical Properties

Silane Coupling Agent Crosile®189 is a colorless clear liquid with light typical odor and easily soluble in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.

3-Mercaptopropyltrimethoxysilane is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group

 

Packaging & Availability

Packing

25 kg /drum, it loads 16 MT/ 20 FCL with pallet

200 kg /drum, it loads 16 MT/20 FCL with pallet

1000 kg in plastic drum, 21.2 MT/20 FCL with pallet.

Storage & Handling

Storage

Kept in a low temperature, dry and ventilated place, avoid direct sunlight.

Shelf life

One year in ventilating, cool and dry area.