Sipomer BEM (Ethoxylated Behenyl Methacrylate, CAS No. 125441-87-4) is a versatile long-chain hydrophobic methacrylate monomer designed to enhance the performance of a wide range of polymer systems. Its ethoxylated C22 alkyl structure provides excellent hydrophobicity, flexibility, anti-blocking, slip, and surface modification, while maintaining reliable copolymerization with acrylic, methacrylic, and other functional monomers.
Supplied at a purity of 49–52%, this clear to slightly hazy liquid is compatible with waterborne and solvent-based formulations, including emulsions, dispersions, solution polymers, and bulk polymerizations. Its chemical and thermal stability ensures consistent performance under industrial processing conditions.
Sipomer BEM improves film formation, water and chemical resistance, mechanical durability, pigment wetting, surface smoothness, and tactile feel, making it ideal for high-performance coatings, adhesives, inks, polymers, and surface-functional materials. It can be used independently or combined with other monomers to achieve customized polymer properties and enhanced functional performance.
Industrial, decorative, and protective coatings
Waterborne and solvent-based adhesives, sealants, and pressure-sensitive adhesives
Emulsion, solution, and bulk polymerization systems
Printing inks, specialty coatings, and pigment dispersions
Functional polymer additives for hydrophobicity, slip, anti-blocking, and surface modification
Surface functionalization for plastics, composites, textiles, and leather
High-performance polymers and composites with enhanced durability and chemical resistance
Available in IBC containers or 200 L drums, with custom packaging options upon request.
| 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 |
