Sipomer BEM (Ethoxylated Behenyl Methacrylate, CAS No. 125441-87-4) is a high-performance, long-chain hydrophobic methacrylate monomer designed to enhance the properties of a wide range of polymer systems. Its unique ethoxylated C22 alkyl structure delivers superior flexibility, water repellency, anti-blocking, slip, and surface-modifying properties while ensuring excellent copolymerization with acrylate, methacrylate, and other functional monomers.
Supplied at a purity of 49–52%, Sipomer BEM appears as a clear to slightly hazy liquid and is fully compatible with waterborne and solvent-based formulations. Its robust chemical and thermal stability ensures consistent performance under industrial processing conditions, making it ideal for high-performance and specialty polymer applications.
Sipomer BEM is widely utilized to improve film formation, durability, hydrophobicity, chemical resistance, pigment wetting, and surface finish, offering versatile solutions for coatings, adhesives, inks, polymers, and surface-functional materials. It can be incorporated independently or synergistically with other monomers and additives to achieve tailored performance in a variety of formulations.
Industrial and decorative coatings, paints, and varnishes
Waterborne and solvent-based adhesives, sealants, and pressure-sensitive adhesives
Emulsion, solution, and bulk polymerization systems
Printing inks, specialty coatings, and polymer dispersions
Surface functionalization of plastics, composites, textiles, and leather
Hydrophobic and slip-enhanced additives for functional polymers
Coatings and finishes with improved durability, water repellency, and tactile properties
Standard packaging includes IBC containers or 200 L drums, with custom packaging options available according to client requirements.
With extensive experience in international markets, we offer Sipomer BEM with consistent quality, reliable supply, and professional technical support. Its long-chain structure provides hydrophobicity, flexibility, anti-blocking, slip, and surface modification properties, making it a preferred monomer for manufacturers aiming to enhance performance in coatings, adhesives, inks, polymers, and functional materials across multiple industries.
| 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 |
