Sipomer BEM (Ethoxylated Behenyl Methacrylate, CAS No. 125441-87-4) is a versatile long-chain hydrophobic methacrylate monomer designed to enhance performance in a wide range of polymer systems. Its unique ethoxylated C22 alkyl structure provides exceptional flexibility, hydrophobicity, anti-blocking, slip, and surface-modifying properties while maintaining excellent copolymerization with acrylic, methacrylic, and other functional monomers.
This monomer is supplied at a purity of 49–52% and appears as a clear to slightly hazy liquid. It is compatible with both waterborne and solvent-based systems, including emulsions, dispersions, and bulk polymerizations. Its chemical and thermal stability ensure consistent performance under industrial processing conditions.
Sipomer BEM is widely used across multiple applications to improve film softness, water repellency, chemical resistance, mechanical durability, pigment wetting, and surface properties. It can be used independently or in combination with other monomers and additives to optimize polymer properties for tailored performance.
Industrial coatings, paints, and varnishes
Adhesives, sealants, and pressure-sensitive adhesives
Emulsion and solution polymerization systems
Inks, printing coatings, and specialty polymers
Surface modification agents and functional polymer additives
Textile and leather finishes
Plastics and composite materials with improved hydrophobicity and surface slip
Standard packaging includes IBC containers or 200 L drums. Custom packaging options can be provided according to client requirements.
With extensive export and technical experience, we provide Sipomer BEM with stable quality, reliable supply, and professional technical support. Its long-chain structure delivers hydrophobicity, flexibility, anti-blocking, and slip properties, making it a preferred monomer for manufacturers seeking enhanced performance in coatings, adhesives, inks, functional polymers, and surface-modified materials.
| Item | Specification |
|---|---|
| Product Name | Sipomer BEM (Ethoxylated Behenyl Methacrylate) |
| CAS Number | 125441-87-4 |
| Appearance | Clear to slightly hazy liquid |
| Purity | 49–52% |
| Functional Group | Long-chain alkyl methacrylate |
| Solubility | Compatible with acrylic monomers, solvents, and polymer dispersions |
| Odor | Mild characteristic odor |
| Key Features | Hydrophobicity, flexibility, anti-blocking, slip, surface modification |
| Packaging | IBC container / 200 L drum |
