Brand and Model: BYK - 323, developed and produced by BYK - Chemie, Germany. The brand is renowned for innovative technologies and high - performance products in the field of coating additives, focusing on providing professional solutions for solvent - based coating systems.
Packaging Specifications: 25 kg/blue iron drum, 195 kg/blue iron drum, meeting the different needs of laboratory research, small - to medium - batch production, and large - scale industrial applications. The packaging design is convenient for storage and transportation.
Composition: Arylalkyl - modified alkylsiloxane (organosilicon surface additive). Through the special modification of arylalkyl and siloxane molecules, it exhibits excellent orientation and compatibility in solvent - based systems.
2. Core Performance
Precisely Regulate Surface Tension and Smoothness: Slightly reduce the surface tension of solvent - based coating systems, optimize the leveling property of wet films, and at the same time endow the coating with a moderate smooth touch, avoiding the decrease of recoat adhesion caused by excessive smoothness. It is suitable for scenarios with precise requirements for surface performance (such as matte coatings).
Dynamic Defoaming and Antifoaming Capability: The defoaming effect adjusts with the change of the polarity of the coating system, and it performs excellently in medium - low polarity solvent - based systems (such as alkyd and acrylic resins). It can effectively eliminate bubbles introduced during production and construction, reduce pinhole defects; the antifoaming performance is long - lasting, and it can inhibit the regeneration of bubbles during the coating drying process.
Excellent Thermal Stability and Adhesion Compatibility: With a thermal stability of up to 230 °C, it can still maintain stable performance in high - temperature baking systems and does not affect the adhesion between coatings. It is suitable for high - temperature curing scenarios such as coil coatings and original automotive paints.
Compatibility with Matting Powder and Filler Systems: It has good orientation in solvent - based systems, will not damage the uniform distribution of matting powder, and ensures the gloss consistency of matte coatings; at the same time, it is suitable for coatings containing fillers (such as metal anti - corrosion paints), assisting in improving filler dispersion and enhancing coating flatness.
3. Application Fields
Solvent - Based Matte Coatings:
Wood matte paints, furniture paints: Optimize the orientation arrangement of matting powder to ensure uniform matte effect and improve leveling property at the same time;
Industrial matte decorative paints: Such as coatings for engineering machinery and agricultural machinery equipment, balancing surface texture and protective performance.
High - Temperature Curing Coatings:
Coil coatings (180 - 230 °C baking): Resist surface tension fluctuations at high temperatures and ensure coating uniformity;
Original automotive paints, home appliance metal paints: Maintain stable leveling during high - temperature film formation without affecting interlayer adhesion.
Filler - Type Anti - Corrosion Coatings:
Steel structure anti - corrosion paints, marine coatings: Assist filler dispersion and reduce surface defects caused by filler agglomeration.
4. Usage Method and Dosage
Adding Stage: It is recommended to add during the paint mixing stage of coating production. Add slowly under low - speed stirring to ensure uniform dispersion, and avoid direct mixing with strongly polar solvents.
Recommended Dosage: 0.1% - 0.5% of the total formula amount. The specific dosage needs to be adjusted according to the system:
In matte wood paints, the dosage is 0.2% - 0.4% to optimize the effect of matting powder;
In high - temperature coil coatings, it can be increased to 0.3% - 0.5% to enhance thermal stability;
In filler - type anti - corrosion coatings, it is recommended to use 0.1% - 0.3% to assist filler dispersion.
5. Precautions
Polar System Compatibility Test: In highly polar solvents (such as ketones, alcohols) or strongly polar resins (such as epoxy amine curing systems), a compatibility test must be carried out in advance to avoid the decrease of defoaming effect or coating defects caused by polarity differences.
Storage Conditions: Store in a cool and dry place (5 - 30 °C), away from heat sources and open flames. The shelf life of unopened packages is 24 months.
Safety Protection: Wear protective gloves and goggles during operation to avoid direct contact with skin and eyes. If accidentally contacted, rinse with plenty of water and seek medical attention.
