Product Details
CasNo： 64742-46-7
Appearance： liquid
Delivery Time： 15 days
Packing： 25kg/drum
Purity： 99%
1. Basic Information
- Brand and Model: BYK - 306, produced by BYK - Chemie of Germany. The brand has world - leading technological R & D capabilities and market recognition in the field of coating additives.
- Packaging Specifications: 20 kg/blue iron drum, 160 kg/blue iron drum, meeting the procurement and storage needs of customers of different scales.
- Composition: Polyether - modified polydimethylsiloxane (an organosilicon - based surface additive), whose surface activity and compatibility have been optimized through polyether segment modification.
2. Core Performance
- Efficiently Reduce Surface Tension: Significantly reduce the surface tension of solvent - based coatings and room - temperature curing plastic systems, promote the uniform spreading of coatings on substrates such as metals, woods, and plastics, and effectively prevent surface defects such as craters and fisheyes. For example, in the spraying of original automotive paints, it can ensure that the paint surface is smooth and free of defects.
- Optimize Substrate Wetting and Leveling: Enhance the wetting ability of coatings on complex substrates (such as rough metals and porous woods), improve the leveling property of wet films, and reduce coating defects such as brush marks and roller marks. After drying and film formation, the flatness and gloss of the paint film are significantly improved.
- Prevent Benard Vortices and Pigment Dispersion: In pigment - filled systems (such as industrial coatings with high filler content), it can inhibit the formation of Benard vortices, avoid stripe - like defects in the coating, and assist in the uniform dispersion of pigments to improve color consistency.
- Improve Surface Smoothness and Scratch Resistance: Endow the coating with a delicate and smooth touch, reduce the friction coefficient, and enhance scratch resistance, which is especially suitable for scenarios with high requirements for surface texture such as furniture and electronic device casings.
- Improve the Performance of Special Systems:
- Reduce the sensitivity of wood coatings to air currents and reduce paint film defects caused by air current disturbance during spraying;
- Optimize the orientation arrangement of matting powder in the coating, make the matting effect more uniform, and avoid local gloss differences.
3. Application Fields
- Solvent - based Coatings: Original automotive paints, automotive refinish paints, metal anti - corrosion coatings, wood coatings, coil coatings, etc., compatible with resin systems such as alkyd, acrylic, and epoxy.
- Room - temperature Curing Plastic Systems: Molding processes (such as hand lay - up and spray molding) of unsaturated polyester resins, vinyl ester resins, etc., to improve air bubbles and surface defects during the curing process.
- Pigment - filled Systems: Industrial coatings and printing inks with high filler content to improve pigment dispersion and coating uniformity.
4. Usage Method and Dosage
- Adding Stage: It is recommended to add during the paint mixing stage of coating production or before the curing of plastic systems, and add slowly under low - speed stirring to ensure uniform dispersion.
- Recommended Dosage: 0.1% - 1.0% of the total formula amount. The specific dosage needs to be determined through experiments according to the system type (such as resin polarity, solvent evaporation rate), construction process (spraying/brush coating), and performance requirements. For example, in high - filler wood coatings, the dosage can be adjusted to 0.5% to optimize the leveling and anti - vortex effects.
5. Precautions
- Compatibility Test: Although suitable for most solvent - based systems, in formulations containing strongly polar solvents (such as ketones) or special resins (such as fluorocarbon resins), compatibility tests need to be carried out in advance to avoid turbidity or delamination.
- 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 usually 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.
