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High molecular weight methyl methacrylate homopolymer offering excellent clarity and UV stability.
Low yellow index and superior weatherability for long-term outdoor performance.
Good solubility in common organic solvents including esters, ketones, and aromatic hydrocarbons.
Excellent thermal stability with high melt viscosity suitable for solution casting and coating applications.
Consistent batch-to-batch reproducibility meeting stringent quality control standards for industrial use.
High-performance architectural and automotive clear coats.
Solution-cast optical-grade sheets and lighting diffusers.
Premium protective coatings for signage, displays, and decorative laminates.
Formulation component in specialty inks and overprint varnishes.
Base resin for high-gloss industrial maintenance coatings requiring durability and gloss retention.
| Chemical Type | Methyl methacrylate homopolymer |
| Product Form | White granular solid |
| Appearance | Free-flowing granules, uniform size distribution |
| Primary Applications | Solution casting, high-solids coatings, specialty inks |
| Key Features | High clarity, low yellowing, excellent solvent response |
| Benefits | Superior gloss retention, enhanced UV resistance, reliable film formation |
| Typical K-value (1% in CHCl₃, 25°C) | ~68–72 |
| Residue on Ignition (max) | 0.1 wt% |
Q1: What is the primary function of Elvacite 4021 in coating formulations?
A: Elvacite 4021 is a solution-grade methyl methacrylate-based acrylic resin designed to serve as a film-forming binder and rheology modifier in solvent-borne coatings, particularly for high-gloss industrial and automotive refinish systems.
Q2: Is Elvacite 4021 compatible with common organic solvents used in industrial coatings?
A: Yes — Elvacite 4021 exhibits excellent solubility in typical medium- to slow-evaporating esters, ketones, and aromatic hydrocarbons, such as ethyl acetate, butyl acetate, MEK, and xylene, making it suitable for conventional solvent-based formulation practices.
Q3: How does Elvacite 4021 contribute to coating performance?
A: It enhances gloss retention, improves flow and leveling, increases hardness development, and contributes to good resistance to water, alkalis, and UV exposure — characteristics commonly required in durable topcoats and clearcoats.
Q4: Can Elvacite 4021 be used in combination with other resins or crosslinkers?
A: Yes — it is frequently blended with alkyds, polyesters, and amino resins (e.g., melamine-formaldehyde), and demonstrates good compatibility with common curing agents in thermosetting systems, supporting both ambient- and bake-cure applications.
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E-mail: wangxingqiang@ericwchem.com
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