BYK-067A

Product Details

CasNo： 9006-65-9

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

Product Details

• Product Name: Defoamer
• Brand and Model: BYK - 067A
• Packaging Specifications: 25 kg/blue iron drum. This packaging specification is suitable for small and medium - batch usage scenarios, facilitating handling, storage and access, and can meet the needs of most small and medium - sized enterprises or laboratories.
• Main Ingredient: Organosilicon, which has been treated with special processes to make it have good defoaming activity and stability, and can play an excellent defoaming role in various systems.

Physical Properties

• Appearance: Usually a colorless to pale yellow transparent or translucent liquid. There may be very slight changes in color in different production batches due to small differences in raw materials, but it does not affect the normal use and performance of the product.
• Density: Generally between 0.9 - 1.1 g/cm³, and the specific value will be clearly marked in the product's technical manual. This density is similar to that of common ink, coating and other systems, which helps the defoamer to disperse evenly in the system and better play the defoaming effect.
• Flash Point: Relatively high, generally above 60 °C, which makes the product relatively safe during storage and use, reducing the risk of safety accidents such as fire.
• Solubility: It can be well dispersed in various organic solvents, such as aromatics, esters, alcohols, etc., and can also be dispersed in some water - based systems through special emulsification technology, so as to play a role in different types of solvent - based and solvent - free systems.

Application Fields

• Printing Inks: Whether it is solvent - free printing ink or solvent - based printing ink, during the production process, operations such as stirring and adding pigments are likely to introduce air to generate foam. BYK - 067A can quickly eliminate these foams, avoid defects such as white spots and pinholes during printing, improve the clarity and color uniformity of printed matter, and ensure printing quality.
• Overprint Varnishes: During the production and construction of overprint varnishes, this defoamer can effectively remove foam, make the paint film formed by the varnish more smooth and flat, improve the gloss and appearance of the coating, and at the same time enhance the protective performance of the paint film.
• Adhesives and Sealants: During the preparation of adhesives and sealants, foam is often generated due to the mixing of various additives and stirring operations. BYK - 067A can eliminate these foams, ensure the uniformity and bonding performance of adhesives and sealants, and avoid problems such as poor bonding caused by foam.
• Room - temperature Curing Plastic Systems: For room - temperature curing plastic systems, such as some polyurethane plastics, if there is foam during the curing process, it will affect the performance and appearance of the plastic. This defoamer can effectively eliminate foam before plastic curing, ensure the quality of plastic products, and especially in thick coating construction, it can better avoid foam residue and make the coating more dense.

Performance Characteristics

• Efficient Defoaming: It has the ability to defoam quickly, can quickly reduce the surface tension of foam, and make the foam break quickly. At the same time, it can inhibit the regeneration of foam for a long time, and can maintain a good defoaming effect throughout the production and construction process, ensure the smooth progress of production, and improve production efficiency.
• Good System Compatibility: It has good compatibility with various resins, pigments, additives and other components in solvent - free and solvent - based systems. It will not cause surface defects such as pinholes and fish eyes, nor will it affect key performance indicators such as curing performance and adhesion of the system, ensuring the final quality and performance of the product.
• Outstanding Targeted Effect: It is especially recommended for polyurethane systems. In this system, it can better adapt to the chemical properties and curing characteristics of the system and play more excellent defoaming performance. Moreover, in thick coating construction, compared with other defoamers, it can eliminate and inhibit foam more effectively and ensure the quality of thick coatings.

Recommended Dosage

Generally, it accounts for 0.05% - 0.5% of the total formula amount. The specific usage amount needs to be adjusted according to factors such as the severity of foam in the system, formula composition and production process. For example, for systems that are prone to generate a large amount of foam or application scenarios with extremely high defoaming requirements, the dosage can be appropriately increased; for systems with relatively mild foam problems, the dosage can be appropriately reduced.

Usage Method

• Adding Stage: It can be added in the late grinding stage, paint (ink) mixing stage or mixing stage of system production. Adding in the late grinding stage can eliminate the foam generated during the grinding process and avoid the foam affecting the dispersion effect of pigments; adding in the paint (ink) mixing or mixing stage can eliminate the foam generated by air introduced during the mixing process.
• Adding Method: It is recommended to use the method of slow dripping while stirring. The stirring speed is controlled at 100 - 300 rpm, which can make the defoamer evenly dispersed into the system and give full play to its defoaming performance. The dripping speed should not be too fast to avoid too high local concentration of the defoamer, which will affect the defoaming effect and system stability.

Storage and Transportation Conditions

• Transportation: Transport in accordance with the requirements for general chemicals. During transportation, collision, inversion, exposure to the sun and rain should be avoided to prevent packaging damage and affect product performance. It should be transported separately from strong oxidants, strong acids and strong alkalis to avoid chemical reactions.
• Storage: Store in a cool, dry and well - ventilated warehouse. The recommended storage temperature is controlled at 5 - 35 °C, avoiding direct sunlight. The package should be kept sealed during storage to prevent the product from volatilizing or mixing with impurities, which will affect the product quality. Under the specified storage conditions, the storage period of the product is generally 24 months.

Safety Information

• Health Hazards: If it comes into contact with the skin accidentally, rinse immediately with plenty of water; if it comes into contact with the eyes, rinse with plenty of water and seek medical attention in time. During use, avoid inhaling the gas volatilized from the product. It is recommended to operate in a well - ventilated environment. If necessary, personal protective equipment such as protective masks and gloves can be worn.
• Environmental Information: Waste packaging barrels and remaining products should be properly disposed of in accordance with local environmental protection regulations and should not be discarded at will. Under normal use and disposal conditions, this product has little harm to the environment.