EVA Sole Primer for Footwear

EVA treatment agent can form a special coating on the surface of the material, significantly improve the bonding strength between the substrate and other materials (such as plastics, metals, etc.), and is especially suitable for bonding difficult-to-bond materials such as EVA foam materials.

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Description

EVA sole primer for footwear

EVA treatment primer

It is a surface treatment agent based on ethylene-vinyl acetate copolymer (EVA), which is mainly used to improve the adhesion, wettability and wear resistance of the material surface.

Its specific functions include: ‌

‌Enhance adhesion‌: EVA treatment agent can form a special coating on the surface of the material, significantly improve the bonding strength between the substrate and other materials (such as plastics, metals, etc.), and is especially suitable for bonding difficult-to-bond materials such as EVA foam materials. For example, in shoe material manufacturing, the bonding strength between EVA soles and uppers can be improved.

‌Improve wettability‌: The EVA component in the treatment agent can optimize the wetting condition of the material surface, make the coating more uniform and smooth, and reduce bubbles or defects. This feature can improve the adhesion of ink or glue to plastic film in the packaging industry.

Chemical action

Some components in the EVA treatment agent can react chemically with the active groups on the surface of the material to form chemical bonds, thereby enhancing adhesion.

For example, the graft copolymer in the treatment agent can react with the hydroxyl group, carboxyl group, etc. on the surface of the material through its active functional groups to form a strong chemical bond.

Physical effect

EVA treatment agent can penetrate into the tiny pores on the surface of the material, forming a mechanical locking effect, increasing the contact area and friction between the coating and the substrate, thereby enhancing adhesion.
At the same time, the treatment agent can also form a continuous film on the surface of the material, improve the uniformity and density of the coating, and further enhance adhesion.

Improve wettability

The EVA component in the EVA treatment agent has good wetting properties and can effectively improve the wetting condition of the material surface. This allows the coating to spread more evenly on the surface of the material, reducing the generation of bubbles and defects, thereby improving adhesion.

In practical applications, EVA treatment agents are widely used to improve the adhesion of various material surfaces. For example:

In shoe material manufacturing, EVA treatment agents can significantly enhance the bonding strength between EVA shoe materials and other components (such as soles, uppers, etc.), and improve the durability and comfort of shoes.
In the packaging industry, EVA treatment agents can be used to enhance the adhesion of plastic films, paper and other packaging materials to inks and glues, and improve printing effects and bonding quality.
In the construction and automotive industries, EVA treatment agents can also be used to enhance the adhesion of coatings such as paints and paints to substrates such as metals and plastics, and improve the durability and aesthetics of the coatings.

Precautions for use

When using EVA treatment agents, the following points should be noted to ensure the best effect:

Correctly identify the type and properties of the treated material and select the appropriate treatment agent model and formula.

Perform appropriate pretreatment (such as degreasing, decontamination, polishing, etc.) on the surface of the treated material before use to improve the adhesion effect of the treatment agent.

Strictly follow the operating steps in the product manual to ensure uniform coating and sufficient drying of the treatment agent.

Pay attention to the influence of the construction environment and conditions (such as temperature, humidity, etc.), and avoid construction under unfavorable conditions.