



inquiry@silfluo.com

EN 

English

日本語

한국어

français

Deutsch

Español

русский

português

العربية

tiếng việt

ไทย

Products

Application

Company

Support

News

English 日本語 한국어 français Deutsch Español русский português العربية tiếng việt ไทย

 



Home

Products 

Silanes & Catalysts Silicone Fluids & Reactive Polymers Silicone Resin Silicone Rubber Silicone Surfactant Conformal Coating Fluorinated Electronic Coating

Application 

Adhesives & Sealants Aerospace Agriculture Building & Construction Coating & Paints Electric Power & Telecommunication Electronics Fiberglass & Composite Healthcare Personal Care New Energy Railway & Automotive Surface Treatment

Company

Support 

Silicones Wiki Product Brochures FAQ Services

News 

Industry News Exhibitions & Events

Email Us

LS-MA131 Acryloyloxymethyltrimethoxysilane
CAS NO.: 21134-38-3

Name: LS-MA131 Acryloyloxymethyltrimethoxysilane
Brand: Nanjing Silfluo New Material Co., Ltd.
Availability: InStock

Silfluo LS-MA131 is Acryloyloxymethyltrimethoxysilane, an alpha-acryloxy functional silane.

The molecule contains an acryloxy group and a trimethoxysilyl group connected through a methylene bridge.

The acryloxy group participates in free-radical polymerization, including UV, EB, peroxide, and other radical-curing systems.

The trimethoxysilyl group hydrolyzes and bonds to hydroxylated inorganic surfaces or forms siloxane linkages under suitable moisture, pH, and catalyst conditions.

The alpha-silane structure gives different hydrolysis and condensation behavior compared with conventional gamma-functional acrylate silanes.

Used as coupling agent, adhesion promoter, or reactive silane additive in radical-curable systems, filled polymers, coatings, adhesives, and composites.

Cure behavior, adhesion, dielectric properties, optical properties, and moisture resistance require verification in the target formulation.

Where to buy CAS NO.: 21134-38-3 PDF Download

Typical Physical Properties of LS-MA131 Acryloyloxymethyltrimethoxysilane

Silfluo Code:	LS-MA131
Chemical Name: Synonyms	Acryloyloxymethyltrimethoxysilane (Trimethoxysilyl)methyl acrylate
CAS No. : EINECS No. :	21134-38-3 700-313-9
Molecular Formula:	C₇H₁₄O₅Si
Molecular Weight:	206.27
Appearance:	Colorless to light red transparent liquid
Purity (by GC, %)	97 min
Density (25°C, g/cm³)	1.040-1.060
Refractive Index (n25/D)	1.4100-1.4300
Boiling Point:	174°C
Flash Point:	50°C Closed Cup

Applications of LS-MA131 Acryloyloxymethyltrimethoxysilane

1. Wire and cable compounds

Used as coupling additive in mineral-filled, peroxide-crosslinked EPDM and other insulating polymer systems. Verify dielectric properties, moisture resistance, mechanical properties, and aging behavior in the target cable compound.

2. UV . EB curable systems

Used as reactive silane additive in UV- or EB-curable coatings, adhesives, inks, composites, and resin systems. Verify cure behavior, adhesion, and storage stability in the formulation.

3. Unsaturated polyester, vinyl ester, and acrylic composites

Used as coupling agent in glass fiber-reinforced or mineral-filled radical-curable composites. Test wet mechanical properties, flexural properties, and optical properties in the target system.

4. Adhesives and coatings

Used in radical-curable adhesives, sealants, and coating systems requiring acrylate functionality and alkoxysilane reactivity. Verify adhesion to glass, mineral, metal oxide, and selected polymer substrates.

5. 3D printing resins and fiber-optic coatings

Used in photocurable resin systems. Confirm cure speed, yellowing resistance, optical clarity, adhesion, and mechanical properties before commercial use.

Packing of LS-MA131 Acryloyloxymethyltrimethoxysilane

In 25kg pail, 200kg drum and 1000kg IBC.

Safety and Storage of LS-MA131 Acryloyloxymethyltrimethoxysilane

Keep in a cool, strictly dark, and well-ventilated environment.

The shelf life is a minimum of 6 to 9 months from the date of manufacture when stored at or below 25°C (refrigeration preferred) in tightly sealed, original unopened containers.