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What is a UV defoamer?

What is a UV defoamer?

In the modern industrial sector—particularly in manufacturing industries such as coatings, inks, and adhesives—the issue of foam has long been a challenging problem that needs to be addressed. The presence of foam not only affects the uniformity of product mixing and the aesthetic appeal of coated surfaces but can also negatively impact the physical properties of the products. To tackle this issue, UV defoamers have emerged.

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2024

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12

Applications and Key Points of Various Leveling Agents

Applications and Key Points of Various Leveling Agents

In the modern coatings industry, leveling agents—essential additives—play a critical role in optimizing coating performance and enhancing the quality of the coated film. From solvent-based coatings to waterborne coatings, from powder coatings to various high-performance coatings, the application of leveling agents covers nearly all types of coatings. By adjusting the surface tension of coatings and improving their flowability and wettability, these agents ensure that the coated film develops a smooth, glossy, and uniform appearance during the drying process. This article delves into the application scenarios and key considerations for different types of leveling agents, elucidating how they, through diverse mechanisms of action, significantly contribute to improving both the applicability of coatings and the overall quality of the final coated film.

15

2024

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12

Selection and Use of Flow Control Agents

Selection and Use of Flow Control Agents

In the preparation of coatings and coating systems, the selection and use of leveling agents undoubtedly represent one of the key steps in determining the quality of the final product. As an important class of additives, leveling agents not only significantly enhance the flow and wetting properties of coatings, ensuring that the coating film achieves ideal smoothness and uniformity during formation, but also effectively reduce or eliminate common surface defects such as brush marks, orange peel, and pinholes. However, faced with a wide array of leveling agent products on the market, each boasting different performance characteristics, accurately selecting and appropriately using these agents to maximize their effectiveness while also taking cost-effectiveness into account remains a significant challenge.

14

2024

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12

Flow additives for different application systems

Flow additives for different application systems

A leveling agent is a commonly used coating additive whose primary function is to help the coating form a smooth, glossy, and uniform film during the drying and film-forming process. It significantly influences the coating’s leveling properties, gloss level, and overall performance. Different coating systems—due to their varying compositions, intended applications, and construction environments—have different requirements for leveling agents. Therefore, selecting the right leveling agent is crucial for optimizing coating performance.

13

2024

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12

What are the chemical-action leveling agents?

What are the chemical-action leveling agents?

A leveling agent, also known as a surfactant, is a chemical substance that can reduce the surface tension of liquids and improve their surface properties. Typically composed of a hydrophobic group and a hydrophilic group, these agents adsorb onto the liquid surface to form a molecular layer, thereby lowering the surface tension of the liquid. Leveling agents are widely used additives in fields such as coatings, inks, and adhesives. They enable these substances to form a uniform film on surfaces and impart excellent gloss and smoothness.

12

2024

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What are the physical-action leveling agents?

What are the physical-action leveling agents?

In the coatings industry, leveling property is one of the key indicators for assessing the quality of a coating. It directly affects the smoothness and glossiness of the coated surface, thereby influencing the aesthetic appeal and durability of the final product. To enhance the leveling property of coatings, the industry has developed a series of leveling agents. Among these, physically acting leveling agents have attracted considerable attention due to their unique physical mechanisms and broad range of applications. These leveling agents achieve improved leveling by adjusting the viscosity, leveling time, or surface properties of the coating—without undergoing any chemical reactions with the coating system itself.

11

2024

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12

Resins with Various Curing Methods (Part 2)

Resins with Various Curing Methods (Part 2)

Resin materials have attracted considerable attention due to their unique properties and wide range of applications. As a crucial step in the application of resin materials, resin curing technology plays an important role in enhancing material performance and expanding its application fields. In the previous issue, we discussed two major types of resin curing technologies: UV-curable resins and visible-light-curable resins. In addition to these, this article will introduce three other distinct types of resin curing technologies—IR-curable resins, thermally cured resins, and water-curable resins. Each of these curing technologies has its own distinctive features and is suited to different application scenarios, offering greater flexibility and more possibilities for the use of resin materials.

10

2024

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12

Resins with Various Curing Methods (Part 1)

Resins with Various Curing Methods (Part 1)

As an efficient and environmentally friendly material-curing technology, light-curable resins have demonstrated broad application potential and unique advantages across multiple fields. Among them, ultraviolet (UV) light-curable resins and visible-light-curable resins—two major types—each possess distinctive curing mechanisms, performance characteristics, and application areas.

10

2024

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12

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