BYK-057

Product Details

CasNo： 64742-46-7

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

1. Basic Information

• Product Name: Defoamer
• Brand and Model: BYK - 057
• Packaging Specifications: Available in two specifications: 25 kg/blue iron drum and 170 kg/blue iron drum. These specifications meet the dosage requirements of enterprises with different production scales. The small specification is convenient for small - batch trials or short - distance transportation, while the large specification is suitable for long - term and large - scale production scenarios, reducing unit packaging costs and transportation frequency.
• Core Component: Non - silicon polymer, synthesized through a special polymerization process. Its molecular structure is optimized and designed, which has both defoaming and auxiliary leveling functions, and does not contain any organosilicon components. This avoids the risk of surface defects that organosilicon may bring and is suitable for coating and ink systems sensitive to organosilicon.

2. Physical Properties

• Appearance: It is a colorless to light yellow transparent liquid under normal conditions. There may be extremely slight color fluctuations in different batches due to small differences in raw materials, but this does not affect the core performance and use effect of the product.
• Density: The density range at room temperature is about 0.92 - 1.05 g/cm³ (the specific value is subject to the technical data sheet attached to the product). It is similar to the density of most solvent - based and solvent - free coating and ink systems, which is convenient for uniform dispersion and reduces the risk of delamination.
• Flash Point: The flash point is ≥ 65 °C. It is a low - volatility and high - safety product. In the conventional production, storage and transportation environment, it is not easy to cause combustion risks and meets the safety operation specifications of industrial chemicals.
• Solubility: It can be well dispersed in common solvents such as benzene, esters and ketones, and solvent - free resin systems (such as unsaturated polyester and epoxy resin). There is no need to add additional dispersants, and it can be directly integrated into the system to play a role.

3. Application Fields

3.1 Coating Systems

• Solvent - based Coatings: Suitable for industrial coatings (such as anti - corrosion paint for mechanical equipment, decorative paint for hardware parts) and coil coatings (color steel coil coatings). It can eliminate foam introduced by stirring and grinding during production, avoid pinholes and bubbles after coating curing, ensure the flatness and weather resistance of the coating; at the same time, it inhibits the generation of new foam during the construction stage (such as spraying and roller coating) and improves the coating efficiency.
• Solvent - free Coatings: It has significant effects in solvent - free unsaturated polyester coatings (such as coatings for FRP products) and solvent - free epoxy resin coatings (such as floor paint and pipeline anti - corrosion coatings). It solves the problem that solvent - free systems are difficult to discharge bubbles due to high viscosity and ensures the compactness of the coating, enhancing anti - corrosion and wear - resistant properties.

3.2 Ink Systems

It can be used in solvent - based printing inks (such as gravure printing inks and screen printing inks) to eliminate foam generated during ink preparation when pigments are dispersed and air introduced due to ink flow during printing. This avoids defects such as white spots and missing prints on printed matter and improves the clarity and color uniformity of printed patterns.

3.3 Specific Resin Systems

For resin - based products such as unsaturated polyester, acrylic/vinyl acetate copolymer, epoxy resin and oil - free polyester, whether they are coatings or inks, they can accurately match the system characteristics. On the premise of not affecting the curing speed and cross - linking density of the resin, efficient defoaming can be achieved.

4. Performance Characteristics

• Multifunctional Integration: It is both an efficient defoamer and has an auxiliary leveling effect. While defoaming, it can improve the leveling property of coatings/inks, reduce surface defects such as brush marks and orange peel, especially suitable for industrial coatings and printed matter with high appearance requirements, saving the cost of adding additional leveling agents.
• High and Long - lasting Defoaming Efficiency: After contacting with foam, it can quickly penetrate the foam film, destroy the stability of the film, and achieve "second - level bubble breaking"; at the same time, it forms a stable molecular adsorption layer in the system to inhibit foam regeneration, and the validity period covers the entire cycle of production, storage and construction of coatings/inks.
• Excellent System Compatibility: It has good compatibility with various resins, pigments, fillers and other additives (such as dispersants and thickeners), and will not produce adverse reactions such as pinholes, fish eyes and turbidity. Especially in varnishes and light - colored coatings/inks, it can maintain the transparency and gloss of the product.
• Environmental Protection and Safety Considerations: It does not contain heavy metals and has low volatile organic compound (VOC) content. It meets environmental standards such as EU REACH and domestic GB 18581, and is suitable for fields such as indoor coatings and food packaging printing inks with strict environmental requirements; moreover, it has no pungent odor, improving the production operation environment.

5. Recommended Dosage

• General Dosage: Add 0.1% - 0.8% by the total formula mass of coatings or inks. The specific amount needs to be adjusted according to the system viscosity, foam severity and production process.
• Adjustment Suggestions: For high - viscosity solvent - free systems and pigment formulas (such as carbon black and titanium dioxide) that are prone to generate a large amount of foam, the dosage can be appropriately increased to 0.5% - 0.8%; for low - viscosity solvent - based systems and formulas with less foam, the dosage can be reduced to 0.1% - 0.3%. It is recommended to determine the optimal dosage through small - scale tests (such as 100g formula tests) to avoid incomplete defoaming due to insufficient dosage or increased costs due to excessive dosage.

6. Usage Methods

• Adding Timing: It is recommended to add during the late grinding stage or paint (ink) mixing stage of coating/ink production. Adding in the late grinding stage can eliminate the foam generated during the grinding process and avoid the foam affecting the pigment dispersion efficiency; adding in the paint (ink) mixing stage can specifically eliminate the new foam introduced during the mixing process, and at the same time use its leveling function to optimize the final performance of the product.
• Adding Method: Adopt the method of "slow dripping + stirring". The dripping speed is controlled at 1 - 2 mL/s (adjust according to the total amount of the system), the stirring speed is kept at 150 - 300 rpm, and the stirring time is 10 - 20 minutes to ensure that the defoamer is evenly dispersed into the system and avoid performance fluctuations caused by excessive local concentration.
• Precautions: Avoid adding when the system temperature is too high (> 60 °C), as high temperature may cause changes in the molecular structure of the defoamer and affect the defoaming effect; when mixing with other additives (such as curing agents), it is necessary to confirm the compatibility first, and it is recommended to use it in batches after small - scale tests.

7. Storage and Transportation Conditions

• Transportation Requirements: Transport as ordinary chemicals. Avoid violent collision and inversion during transportation to prevent damage and leakage of packaging barrels; it is strictly forbidden to transport with strong oxidants, strong acids and strong alkalis to avoid chemical reactions; transport vehicles should be equipped with sunshade and rainproof facilities to prevent the product from being exposed to the sun or rain.
• Storage Requirements: Store in a cool, dry and ventilated warehouse, with the temperature controlled at 5 - 40 °C, avoiding direct sunlight; keep the packaging barrels sealed to prevent water and impurities from mixing and affecting product performance; the storage period is 24 months (from the date of production). If it exceeds the shelf life, the defoaming performance needs to be re - tested, and it can be used only after passing the test.

8. Safety Information

• Health Protection: Wear solvent - resistant gloves and protective glasses during operation. If the product accidentally contacts the skin, rinse it with clean water immediately for 10 - 15 minutes; if it gets into the eyes, rinse it with a large amount of physiological saline immediately and seek medical attention; avoid inhaling the volatile gas of the product, keep the workplace ventilated, and wear a gas mask if necessary.
• Environmental Treatment: The waste packaging barrels need to be cleaned and then handed over to a qualified unit for recycling; the remaining products should not be dumped into the soil or water at will, and should be disposed of by a professional agency in accordance with local environmental protection regulations to prevent environmental pollution.