During the preparation and application of high-viscosity or environmentally friendly non-aqueous system coatings such as epoxy floor coatings, screen printing inks, and UV-curable inks, mechanical stirring and high-speed coating operations are prone to introducing air bubbles, resulting in surface defects such as pinholes, shrinkage cavities, and fish eyes on the coating, which seriously affect the appearance and protective function of the product. Traditional defoamers often lack efficiency in dealing with such "micro-bubbles" or have poor compatibility with transparent systems. Our company's product defoamer 29200, as a defoamer containing hydrophobic particles of poly siloxane compounds, demonstrates significant application value in epoxy floor coatings, screen printing inks, UV-curable inks, and unsaturated polyester systems, providing efficient foam control solutions for customers in various industries.


I. Core Physical and Chemical Properties of the Product


Product defoamer 29200 is a semi-transparent to turbid liquid with a non-volatile content higher than 98% at 150 degrees Celsius for three hours. This product belongs to a poly siloxane compound containing hydrophobic particles and is specifically designed for high-viscosity solvent-based and non-aqueous systems. It has excellent micro-bubble elimination capabilities and is suitable for eliminating micro-bubbles in high-solid content systems such as epoxy floor coatings.


The product is non-flammable and non-hazardous, ensuring safe use.


II. Core Performance Advantages


Product defoamer 29200, with its unique hydrophobic particle composite poly siloxane structure, exhibits the following core performance advantages in various high-viscosity and non-aqueous systems:


Excellent micro-bubble elimination ability. The product has outstanding micro-bubble elimination effects in high-viscosity systems that are difficult to remove, especially suitable for eliminating bubbles in epoxy floor coatings with high solid content.


Long-lasting foam suppression. The hydrophobic particle-containing poly siloxane structure gives the product persistent foam suppression capabilities, effectively preventing foam re-generation during production, application, and curing.


High active content and economic addition amount. The recommended addition amount of the product is only 0.01% to 1.00% of the total formulation, and a small amount of addition can achieve the desired defoaming effect, with excellent cost-effectiveness.


III. Wide Application Areas


Product defoamer 29200 can play an important role in the following key application areas, including:


1. Epoxy floor coatings. During the application of solvent-free or high-solid content epoxy floor coatings, the product can quickly eliminate air bubbles introduced during stirring and application, ensuring a smooth and glossy surface with no pinhole defects on the coating.


2. Screen printing inks. In the screen printing process, the product can effectively eliminate air bubbles in the ink, avoiding defects such as white spots and sand holes in the printing pattern, ensuring printing quality.


3. UV-curable inks. In the formulation of UV-curable inks, the product can provide excellent defoaming performance without affecting the curing rate and coating adhesion, ensuring the flatness of the cured film layer.


4. Unsaturated polyester systems. The product is suitable for unsaturated polyester resin and composite material systems, effectively eliminating air bubbles during the molding process, improving the structural density of the product.


IV. Application Methods and Process Recommendations


The addition amount of the product is 0.01% to 1.00% of the total coating volume. The best addition time is before grinding or before stirring, and it can also be added later, but must be thoroughly mixed. When used in transparent systems, compatibility should be examined. Due to the high active content of the product, it can be diluted with aromatic solvents to 10% before adding, and it is recommended to use immediately after dilution due to the tendency for hydrophobic particles to precipitate. This product has thixotropic properties, and its viscosity may increase over time or at low temperatures, which is a normal phenomenon. It is recommended to stir evenly before use to facilitate use.


V. Packaging Specifications and Storage Conditions


Product defoamer 29200 is available in various packaging specifications, including twenty-five kilograms of plastic drums, twenty-five kilograms of iron drums, two hundred kilograms of plastic drums, and two hundred kilograms of iron drums. The product should be stored in a sealed manner under a temperature range of 5 to 40 degrees Celsius. During transportation and storage, it should be avoided from high temperatures and freezing. The shelf life is twelve months. This product is non-flammable and non-hazardous.


VI. Quality Assurance and Market Value


Product defoamer 29200 has established a strict quality control system during the production process. Key indicators such as product appearance and non-volatile matter are tested throughout the process to ensure consistency and reliability between batches. As industries such as solvent-free coatings, UV-curable inks, and composite materials continue to develop towards environmental protection and high performance, the demand for efficient additives with both microbubble elimination and long-lasting foam suppression functions is steadily increasing. This product, with its high active content design, optimized defoaming performance for high-viscosity solvent-free systems, and flexible addition methods, is becoming an important defoaming additive option in fields such as epoxy flooring, screen printing inks, and UV-curable inks, providing strong product support for promoting the improvement of product quality and process optimization in related industries.