Brand and Model: BYK - 300, produced by BYK - Chemie of Germany. BYK - Chemie is a well - known enterprise in the additive field, specializing in the development, production and sales of additives required by industries such as coatings and plastics.
Packaging Specifications: There are two common packaging methods: 25 kg/blue iron drum and 180 kg/blue iron drum, which are convenient for customers with different needs.
Composition: Polyether - modified polydimethylsiloxane, an organosilicon compound. The modification of polydimethylsiloxane by polyether endows the product with unique properties.
2. Product Performance
Reducing Surface Tension: It can moderately reduce the surface tension of the coating system, enabling the coating to spread better on the substrate surface and avoiding surface defects such as craters and fisheyes, thereby improving the appearance quality of the coating. For example, in metal surface coating, it can make the coating cover more evenly and reduce adverse phenomena caused by uneven surface tension.
Enhancing Slip: It significantly improves the slip property of the coating, making the coating surface feel smoother. At the same time, it helps to reduce the friction between coatings or between the coating and other objects, and increases the wear resistance of the coating. For example, when applied in furniture coatings, it can make the surface of furniture feel better and be more resistant to daily friction.
Improving Leveling and Gloss: It effectively enhances the leveling property of the coating, allowing the wet film to level more evenly during the drying process and form a smooth and flat coating, thereby improving the gloss of the coating and making the coating look more beautiful. For example, after using this leveling agent in automotive coatings, the paint surface of the car body will be brighter and flatter.
Preventing Benard Vortex Formation: As an organosilicon additive, it can effectively inhibit the generation of Benard vortex. Benard vortex can cause defects such as stripes in the coating. The use of BYK - 300 can avoid such problems and ensure the uniformity of the coating.
Improving Substrate Wettability: It improves the wettability of the coating to different substrates (such as wood, metal, plastic, etc.), enhances the adhesion between the coating and the substrate, makes the coating adhere more firmly to the substrate surface, and improves the durability of the coating.
Anti - blocking Performance: It has certain anti - blocking performance. After the coating dries into a film, it can prevent the coating from blocking during stacking, packaging or transportation, and is especially suitable for fields such as coil coatings and packaging coatings.
3. Application Fields
Solvent - based Coatings: Mainly used in solvent - based coatings, such as solvent - based industrial coatings (including original automotive paint, automotive refinish paint, metal furniture paint, etc.), solvent - based wood coatings, coil coatings, can coatings, etc. In these coating systems, it can give full play to its advantages in leveling, slip and other properties and improve the comprehensive performance of the coating.
4. Usage Method and Recommended Dosage
Usage Method: It is usually added in the paint mixing stage during the coating production process. It is recommended to add it slowly under low - speed stirring to ensure that it is evenly dispersed in the coating system.
Recommended Dosage: Generally, it is 0.1 - 1.0% of the total amount of the coating formula. The specific dosage needs to be determined through experiments according to factors such as the type of coating system, formula composition, construction process and specific performance requirements.
5. Precautions
Compatibility: Although BYK - 300 has good compatibility in most solvent - based coating systems, it is still recommended to conduct a compatibility test before use to avoid problems such as turbidity and delamination caused by incompatibility.
Control of Addition Amount: Excessive addition may lead to problems such as excessive surface tension of the coating, causing sagging and poor recoatability. Therefore, the recommended dosage should be strictly followed and the appropriate addition amount should be determined through experiments.
Storage Conditions: It should be stored in a cool and dry environment, avoiding high temperature, direct sunlight and moisture to ensure the stable performance of the product.
