BYK-377

Product Details

CasNo： 9006-65-9

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

1. Basic Information

• Brand and Model: BYK-377, developed and produced by BYK (Germany), a company with profound technical accumulation and a good market reputation in the field of coating additives.
• Packaging Specifications: Two packaging specifications are available: 25 kg/blue iron drum and 200 kg/blue iron drum, meeting the procurement needs of customers of different scales, whether for small - batch trials by small enterprises or large - scale production use by large enterprises.
• Composition: Mainly composed of polyester - modified polydimethylsiloxane containing hydroxyl functional groups. This unique chemical structure endows the product with a variety of excellent properties.

2. Core Performance

1. Strongly Reduce Surface Tension: It can significantly reduce the surface tension of solvent - free, radiation - cured, solvent - based coating systems, adhesives and printing inks, promote better spreading of materials on the substrate surface, effectively avoid surface defects such as craters and fish eyes, and ensure the flatness and smoothness of coatings or ink layers, thereby improving the appearance quality.
2. Excellent System Compatibility: With the contained hydroxyl functional groups, it can react with a variety of resins and has good compatibility with solvent - based and solvent - free two - component polyurethane systems, UV - cured coatings, polyester/melamine systems and general water - based systems. It can play a stable role in different systems without causing turbidity in clear coats, ensuring the transparency and gloss of the product.
3. Promote Leveling and Improve Performance: It can effectively shorten the leveling time, allowing coatings or inks to level quickly after construction, eliminating brush marks, roller marks, etc., and improving surface flatness. At the same time, it can also endow coatings or ink layers with better smoothness, scratch resistance and wear resistance, enhancing their physical properties and durability.
4. More Environmentally Friendly Without Solvents: This leveling agent contains no solvents, which meets the current environmental protection concepts and regulatory requirements, reduces the emission of volatile organic compounds (VOCs), and has obvious advantages in the market environment where environmental protection requirements are increasingly strict.

3. Application Fields

1. Coating Field
   • Two - component Polyurethane Coatings: Used in original automotive paints, industrial equipment protective paints, etc., to improve the appearance quality and protective performance of coatings and enhance their scratch and wear resistance.
   • UV - cured Coatings: Applied in the coating of 3C product casings, wood furniture UV paints, etc., it can help UV coatings level quickly and improve the quality of cured coatings, making the surface smoother and brighter.
   • Water - based Coatings: In architectural interior wall water - based latex paints, water - based industrial paints, etc., it improves the leveling property and wettability of coatings to substrates and reduces coating defects.
2. Ink Field
   • Flexographic Inks: Used in packaging printing, such as carton and plastic film printing, to make ink distribute better on the substrate surface and improve the clarity and color saturation of patterns.
   • Offset Inks: In paper printing, it helps ink level quickly, reduces problems such as ink bars and ink spots, and improves printing quality.
   • Screen Inks: Suitable for textile printing, glass printing, etc., it improves the leveling property and adhesion of ink, making printed patterns more exquisite and firm.
3. Adhesive Field: It can be used to improve the construction performance of solvent - free adhesives, make them more uniform during application, and enhance the adhesion to different substrates.

4. Usage Instructions

1. Addition Amount: 0.1% - 1.0% based on the total formula mass. The specific addition amount needs to be accurately determined through experiments according to the actual application system, construction process and desired performance effect. Generally speaking, for clear coats with high transparency requirements, the recommended addition amount is between 0.3% - 0.6%.
2. Adding Method: It can be added during the production process of coatings, inks or adhesives, in the grinding stage or the paint (ink, adhesive) mixing stage. After adding, stir thoroughly for no less than 15 minutes to ensure that BYK - 377 leveling agent is evenly dispersed in the system and fully exerts its performance.
3. Precautions: Although BYK - 377 has good compatibility with various systems, it is recommended to conduct small - scale compatibility tests before using new formula systems to avoid mixing with chemicals that may react adversely with hydroxyl functional groups.

5. Storage and Safety

1. Storage Conditions: It should be stored in a cool, dry and well - ventilated warehouse, with the storage temperature controlled at 5 - 35℃, avoiding direct sunlight and high - temperature environments. Keep the package sealed to prevent the product from getting damp or mixed with impurities. Under the conditions that meet the storage conditions, the shelf life is usually 12 months. If the product becomes slightly thick in a low - temperature environment, after the temperature returns to the normal range and is stirred evenly, the product performance is not affected and can be used normally.
2. 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.