Ethylene-vinyl acetate, 20% ethylene, fine powder

Ethylene-vinyl acetate, 20% ethylene, fine powder

Ethylene-vinyl acetate (EVA) copolymer, 20% ethylene, fine powder is a redispersible polymer powder designed for dry-mix formulations and composite systems. Unlike conventional EVA resins supplied as pellets or emulsions, this material is provided as a free-flowing powder that can be blended with solid components and later re-dispersed in water to form a latex-like polymer phase.

This format allows formulators to prepare dry blends that remain stable during storage and handling, with polymer functionality activated only upon water addition. Once dispersed and dried, the EVA copolymer contributes adhesion, flexibility, and cohesive film formation within the final material.

Key Features & Benefits

• Redispersible EVA powder: transitions from dry powder to latex-like dispersion upon water addition
• Optimized for dry-mix systems: enables pre-blending with fillers, additives, and other solid components
• 20% ethylene composition: provides a balance of flexibility and cohesive strength
• Fine particle size: supports uniform dispersion and consistent performance
• Film-forming binder: contributes adhesion and structural integrity after drying
• Vinyl alcohol stabilization: maintains powder flowability while enabling redispersion

Product Details

• Product name: Ethylene-vinyl acetate, 20% ethylene, fine powder
• Polymer type: Ethylene-vinyl acetate copolymer (EVA)
• Composition: ~20 wt% ethylene / ~80 wt% vinyl acetate
• Form: Fine, free-flowing powder
• Solids content: 99 ± 1%
• Particle size: 1–7 micron dominant sizes; max 4% over 40 mesh
• Glass transition temperature (Tg): -7°C
• Stabilization: Vinyl alcohol stabilized

Typical Applications

Dry-mix binder systems
EVA redispersible polymer powder is incorporated into dry formulations where polymer functionality is activated during processing. After water addition, the polymer redistributes and contributes to binding as the system dries.

Composite materials and solid matrices
Following redispersion, EVA particles form a continuous phase during drying, helping bind particulate components into cohesive structures.

Coatings and film-forming applications
The flexible nature of EVA supports film formation in aqueous systems where adhesion and elasticity are required.

Powder-based formulation workflows
This format is useful when liquid latex systems are impractical, allowing storage, transport, and mixing in dry form prior to activation.

Functional Role

This EVA copolymer functions as a redispersible polymer binder. In dry form, it is uniformly distributed within a formulation. Upon water addition, it forms a dispersed polymer phase that integrates throughout the system. As water evaporates, the polymer coalesces to form a film or binding network that contributes mechanical cohesion and adhesion between components.

Why Use EVA Redispersible Powder Instead of EVA Resin?

Traditional EVA materials are supplied as pellets or emulsions and are processed as thermoplastics or liquid dispersions. In contrast, redispersible EVA powder is designed for dry formulation workflows, where materials are mixed in solid form and activated later. This approach simplifies handling, improves formulation flexibility, and allows controlled polymer activation during use.

Handling & Storage

• Store in a cool, dry environment in a tightly sealed container.
• Avoid exposure to moisture to maintain powder flowability.
• Use appropriate dust-handling precautions during processing.
• Refer to the SDS for detailed safety and handling information.

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