Brand and Model: BYK-381, produced by BYK (Germany). BYK has advanced technology and a good market reputation in the field of coating additives, focusing on providing high-performance additive products for the coating, ink and other industries.
Packaging Specification: Packaged in 25 kg/blue iron drums. This packaging is convenient for handling, storage and use, and can meet the needs of customers of different scales, whether it is small-batch trial use by small enterprises or daily production needs of medium-sized enterprises.
Composition: Mainly composed of ionic polyacrylate solution. This unique chemical composition endows the product with specific physical and chemical properties, enabling it to play an excellent leveling and related performance enhancement role in various systems.
2. Core Performance
Excellent Leveling Performance: As an acrylic copolymer surface additive, BYK-381 can significantly improve the leveling effect of water-based coatings and adhesives. During the coating construction process, it can make the coating spread more evenly on the substrate surface, quickly eliminate brush marks, roller marks, etc., and make the coating surface smoother and more delicate, improving the appearance quality of the coating. For example, in the coating of water-based wood paint, it can make the paint film on the wood surface more flat, showing better gloss and texture.
Enhance Substrate Wettability: For water-based and radiation-curable printing inks and overprint varnishes, this additive can effectively improve their wettability to substrates. This means that ink or overprint varnish can better adhere to various printing substrates such as paper and plastic films, making printed patterns clearer and colors more uniform and full, reducing the situation of ink accumulation or uneven distribution, and improving printing quality and effect.
Effectively Prevent Surface Defects: BYK-381 can effectively prevent the generation of surface defects such as craters and pinholes. During the drying of coatings or the curing of inks, it can stabilize the surface tension of the system, avoid crater problems caused by uneven surface tension, and reduce pinholes formed by residual bubbles, ensuring the integrity and aesthetics of coatings or ink layers.
Wide System Applicability: Suitable for all water-based coating and adhesive systems, whether it is water-based acrylic coatings, water-based polyurethane coatings, or various water-based adhesives, it can be well compatible with them and play a role. In addition, it can also stably show its performance advantages in water-based and radiation-curable printing inks and overprint varnishes.
3. Application Fields
Coating Field
Water-based Architectural Coatings: Used in interior and exterior wall latex paints, etc., to improve the construction performance and coating quality of coatings, enhance the flatness and decorative effect of walls, and at the same time enhance the scrub resistance and durability of coatings.
Water-based Wood Coatings: Make the paint film on the wood surface smoother and more delicate, enhance the beauty of wood, and help enhance the wear resistance and scratch resistance of the paint film to protect the wood surface.
Water-based Industrial Coatings: In metal anti-corrosion, mechanical equipment coating and other aspects, help the coating level better, form a uniform and dense coating, improve the protective performance of the coating, and extend the service life of industrial equipment.
Adhesive Field: It can be applied to various water-based adhesives, such as wood bonding in furniture manufacturing, paper bonding in the packaging industry, etc. It can make the adhesive distribute more evenly at the bonding interface, enhance the bonding effect, and improve the construction operability of the adhesive, making the application smoother.
Printing Ink Field
Water-based Printing Inks: In the process of paper printing, plastic film printing, etc., improve the leveling property of ink and its wettability to substrates, make printed patterns more exquisite, color reproduction more accurate, and reduce quality problems such as ink flying and plate pasting during the printing process.
Radiation-curable Printing Inks: Cooperate with the radiation curing process to improve the leveling effect of ink before curing and its adhesion performance to substrates, ensuring that the cured ink layer has good wear resistance, gloss and hardness.
Overprint Varnishes: Whether it is water-based overprint varnishes or radiation-curable overprint varnishes, after adding BYK-381, the overprint varnish can level better, form a uniform and bright protective film, and enhance the aesthetics and protective performance of the product surface.
4. Usage Instructions
Addition Amount: Based on the total formula mass, the recommended addition amount range is 0.1% - 1.0%. However, in actual use, the specific addition amount needs to be accurately determined through experiments according to the formula system, construction process of coatings, adhesives or inks, and requirements for final performance. For example, for high-end wood paints with extremely high flatness requirements, the addition amount may need to be appropriately increased.
Adding Method: During the production process of coatings, adhesives or inks, BYK-381 leveling agent can be added in the grinding stage or the paint (adhesive, ink) mixing stage. After adding, it needs to be fully stirred evenly, and the stirring time is generally not less than 15 minutes to ensure that the leveling agent is evenly dispersed in the system and fully exerts its performance.
Precautions: Although BYK-381 has good compatibility with water-based systems, when used in combination with other additives, it is recommended to conduct small-scale compatibility tests first to avoid adverse reactions such as flocculation and delamination, which may affect product quality. In addition, during storage and use, attention should be paid to avoiding the influence of environmental factors such as high temperature and direct sunlight on product performance.
5. Storage and Safety
Storage Conditions: Should be stored in a cool, dry and well-ventilated warehouse, and the storage temperature is recommended to be controlled at 5 - 35°C. Keep the package sealed to prevent the product from getting damp or mixed with impurities, so as not to affect the product performance. Under the conditions that meet the storage conditions, the shelf life is usually 12 months. If the product becomes thick in a low-temperature environment, after the temperature returns to the normal range and is stirred evenly, it generally does not affect the normal use of the product.
Safety Information: During use, direct contact of the product with skin and eyes should be avoided. In case of accidental contact, rinse immediately with plenty of water and seek medical attention in time. The product itself meets relevant environmental protection and safety standards, but when disposing of waste, it still needs to be properly disposed of in accordance with local regulations and requirements.
