ROMIS FA-310: Technical Specifications and Application Areas of a Silicone-Free Mineral Oil-Based Defoamer for Water-Based Systems

Foam formation in industrial production processes is a common problem that reduces product quality, decreases production efficiency, and increases costs. Especially in water-based systems, the presence of surfactants and factors such as mechanical stirring create a fertile ground for the formation of stable foams. This situation can lead to serious operational challenges in sectors such as paints, varnishes, coatings, adhesives, and construction chemicals. As Ekvator Kimya, we developed ROMIS FA-310 to offer professional and effective solutions to such problems. It is a high-performance industrial defoamer designed to prevent foam formation or rapidly eliminate existing foam in water-based systems.

Professional Solution to Foam Problems: ROMIS FA-310 Overview

ROMIS FA-310 is a special silicone-free, mineral oil-based defoamer. This characteristic makes it an ideal choice for sensitive applications where silicone is undesirable or could lead to adverse effects. The product is formulated with a balanced combination of hydrophobic agents, mineral oil, and nonionic emulsifiers. This synergistic structure provides a rapid and lasting defoaming effect by reducing the surface tension of foam films and thinning foam walls. The primary objective of ROMIS FA-310 is to eliminate problems such as surface defects, filling issues, and production stoppages caused by foam in applications like paints, varnishes, coatings, and construction chemicals.

Chemistry of Defoamers and Working Principle of ROMIS FA-310

Defoamers typically act by disrupting the stability of foam films, which are usually composed of surfactants. Mineral oil-based defoamers like ROMIS FA-310 achieve this effect through several key mechanisms:

• Surface Tension Reduction: Defoamer particles spread on the surface of the foam film and locally reduce its surface tension. This causes the film to weaken and thin.
• Foam Film Rupture: Hydrophobic particles penetrate into the foam film. By forming a bridge between the two surfaces of the film and causing the film to thin locally, the film suddenly ruptures, and the foam collapses.
• Air Release: Defoamers facilitate the coalescence of trapped air bubbles in the system, forming larger bubbles that rise to the surface and escape from the system.

The nonionic character and mineral oil-based structure of ROMIS FA-310 ensure its compatibility with a wide range of pH values and systems with different ionic characteristics. This allows the product to maintain its effectiveness in various formulations.

ROMIS FA-310 Technical Specifications and Detailed Analysis

The physical and chemical properties of ROMIS FA-310 are critical factors determining the product's performance and application potential:

Application Areas and Sectoral Uses

ROMIS FA-310's broad compatibility and effective defoaming performance make it a preferred solution in many industrial fields:

• Acrylic, Acrylic-Styrene, Vinyl, and Vinyl-Acrylic Copolymer Dispersions: These polymer dispersions are often prone to intense foam formation due to their high surfactant content. ROMIS FA-310 controls foam in these systems, increasing production efficiency and product quality.
• Interior and Exterior Paints: In water-based interior and exterior paints, foam formed during and after application can lead to defects such as craters, fish eyes, and pinholes on the surface. ROMIS FA-310 prevents these defects, ensuring a smooth and aesthetic surface finish.
• Putties and Plasters (Especially Acrylic and Silicate-Based Plasters): In the construction chemicals sector, air bubbles formed during the mixing and application of putties and plasters negatively affect the material's strength and workability. ROMIS FA-310 improves the homogeneity and ease of application of these products.
• Adhesive Formulations and Coating Systems: Water-based adhesives and industrial coatings can experience loss of adhesion or surface defects due to foam. ROMIS FA-310 optimizes product performance by providing foam control in these systems.
• Textile and Leather Chemicals: Foam generated during washing, dyeing, and finishing processes can reduce process efficiency and cause stains on the product. ROMIS FA-310 offers effective foam control in these sectors as well.

Dosage, Application, and Storage Conditions

Recommended Dosage and Application Methods

ROMIS FA-310 can be used directly in its commercial form and dosed at different stages of the production process. The most efficient application methods are:

• In Dispersion Paint Production: Approximately 2/3 of the product is typically added during the pigment paste phase. The remaining portion is added during the let-down phase or to the finished product at the final stage to ensure optimum foam control. This two-stage dosing prevents initial foam formation and improves the foam stability of the final product during storage and application.
• General Dosage Range: A dosage of generally 0.1% to 0.3% is recommended, depending on the application characteristics, system type, foaming tendency, and desired defoaming level. However, since each formulation has its unique dynamics, determining the most suitable dosage through laboratory-scale trials is critically important. Overdosing can, in some cases, lead to surface defects or other undesirable effects, while insufficient dosing may fail to resolve the foam problem.
• Mixing: After adding the product to the system, sufficient mixing should be performed to ensure homogeneous dispersion.

Storage and Handling Conditions

Appropriate storage conditions are vital to maintain the stability and performance of ROMIS FA-310:

• Packaging: The product is typically supplied in standard industrial packaging such as 25, 200, or 1000-liter plastic drums and tanks. These packages ensure safe storage and transportation of the product.
• Temperature Range: ROMIS FA-310 should be stored at temperatures between 5 °C and 30 °C. Extremely low temperatures can increase the product's viscosity or cause separation, while excessively high temperatures can lead to degradation of the product's active components and loss of performance. Freezing and overheating should be avoided.
• Storage Precautions: After opening the packaging, the lid should be tightly closed to prevent air contact and contamination. It should not be exposed to direct sunlight for extended periods. During storage, natural separation (phase separation) may occur in mineral oil-based products. Therefore, it is recommended to mix or shake the product thoroughly before use to ensure homogeneity.

Considerations for Defoamer Selection and Product Compatibility Control

Although ROMIS FA-310 is effective in many water-based paint and construction chemical systems, each formulation has its unique chemical structure and requirements. When selecting a defoamer, not only its defoaming effectiveness but also its compatibility with the system must be considered. Attention should be paid to the following factors:

• Surface Defects: An incorrectly chosen or overdosed defoamer can cause defects such as craters, fish eyes, pinholes, or loss of gloss on the surface.
• Optical Properties: Especially in transparent coatings or systems requiring high gloss, the defoamer's effect on optical properties (haze, dullness) should be evaluated.
• Physical Properties: Ensure that the product does not affect fundamental physical properties such as viscosity, hiding power, adhesion, and drying time.
• Trial Applications: Before proceeding to any commercial production, it is strongly recommended to test the compatibility of ROMIS FA-310 with your formulation and its ability to provide the desired performance through small-scale laboratory trials. This helps you identify potential problems in advance and determine the optimal dosage.

Advantages and Potential Challenges / Considerations

Conclusion and Summary Evaluation

ROMIS FA-310 is a powerful and reliable additive for foam control in water-based paints, construction plasters, putties, adhesives, and similar applications. Its silicone-free composition and effective mineral oil-based formulation make it a preferred choice for many sensitive applications. Thanks to its broad compatibility and neutral pH range, it is a solution that can be safely used in your formulations.

If you are looking for a high-performance, silicone-free defoamer for your system, you can examine ROMIS FA-310 on Ekvator Kimya's product page, access its technical data sheet (TDS), and receive technical support for your trial applications. By starting with trial dosages, it is possible to achieve the most suitable performance for your formulation. Ekvator Kimya experts will be pleased to assist you with product selection and application optimization.