3-Methacryloxypropylmethyldimethoxysilane CAS No. 14513-34-9


3-Methacryloxypropylmethyldimethoxysilane (3-MAPS) is a silane coupling agent that is used to modify the surface properties of materials. It is a clear, colorless liquid with a mild odor. 3-MAPS is a versatile silane coupling agent that can be used to improve the adhesion of a variety of materials, including plastics, metals, and ceramics. It can also be used to create water-resistant and corrosion-resistant coatings.



3-MAPS is used in a variety of applications, including:

  • Adhesion promoter for plastics, metals, and ceramics
  • Water-resistant and corrosion-resistant coatings
  • Mold release agent
  • Curing agent for epoxy resins
  • Textile finishing agent
  • Papermaking additive


3-MAPS is a relatively safe chemical, but it can be irritating to the skin and eyes. It is also flammable and should be handled with care.

Product number: PR-572
English name: 3-Methacryloxypropylmethyldimethoxysilane
Alias: 3-(Dimethoxymethylsilyl)propyl methacrylate; 3-(Dimethoxy(methyl)silyl)propyl methacrylate; 3-Methacryloxypropylmethyldimethoxy silane; 3-[dimethoxy(methyl)silyl]propyl 2-methylprop-2-enoate
Molecular Structure: 3-Methacryloxypropylmethyldimethoxysilane CAS No. 14513-34-9
Molecular formula: C10H20O4Si
Molecular weight: 232.35
CAS : 14513-34-9
EINECS : 238-518-6

Application fields :

  1. It can improve the mechanical properties, electrical properties, and light transmission properties of unsaturated polyester composite materials, especially the wet performance of composite materials can be greatly improved.
  2. Improve the mechanical strength and wet state of glass fiber reinforced composite materials. Electrical properties
  3. Copolymerized with vinyl acetate and acrylate or methacrylate monomers, these polymers are widely used in medicine to improve the    performance and durability of coatings, adhesivesand sealants

Packaging and storage:

25L barrel packaging: 208L closed steel drum packaging . After opening the package, it should be kept away from the moisture in the air to avoid hydrolysis and gelation. It should be stored in a ventilated and dry place with a temperature below 25 degrees and a shelf life of 1 year.