Overview
Ethyl acrylate-methacrylic acid copolymer (CAS 25212-88-8 ) is an acrylic copolymer resin used across coatings, adhesives, and specialty finishing systems. It functions as a rheology modifier, binder, and surface-active agent.
This material gives formulators control over film formation, adhesion, and cross-linking response in aqueous and solvent-based systems. In architectural and industrial coatings, it acts as a binder and rheology modifier.
The copolymer improves film build, leveling, and substrate adhesion on metal, plastic, and wood surfaces. Pressure-sensitive adhesive and sealant manufacturers use it to tune tack, cohesive strength, and cure response.
It is effective in both waterborne and solvent-borne formulations. Textile and paper finishers apply it as a surface modifier to improve coating holdout, printability, and resistance to abrasion during processing.
In flexographic and gravure printing inks, it contributes to pigment binding and controls ink viscosity. This ensures consistent transfer across high-speed packaging lines for various commercial printing applications.
Ethyl acrylate-methacrylic acid copolymer is supplied as aqueous dispersions or emulsions, and in some grades as solution polymer or dried powder. Technical grade is the standard commercial offering.
Specific solids content, pH, and viscosity profiles are defined by individual product grades. Specifications vary by supplier and are typically aligned to end-use performance requirements in coatings or adhesives.
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Physical Properties
| Density | 0.83 g/cm³ |
| Appearance | White or almost white, free-flowing powder. |
| pH | 2.1-3.0 |
| Log P | 1.325 (est) |
Trade & Regulatory
| HS Code | 3906906000 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 25212-88-8
- EC Number
- -
- Mol. Weight
- 186.21
- HS Code
- 3906906000
- Category
- Polymers & Resins