S-378 Silicone Leveling Agent
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S-378 Silicone Leveling Agent
Structure or Component: Polyether-modified polydimethylsiloxane copolymer
Features and Applications
Similar to BYK-378, S-378 is a high-performance, solvent-free silicone surface additive designed to significantly reduce surface tension and enhance both scratch resistance and surface slipperiness. It delivers an excellent hand feel while notably improving paint atomization and spraying fluidity for smoother application.
Beyond basic wetting performance, this additive offers superior anti-shrinkage properties and effectively prevents the common “mirror frame” effect in coating finishes. It boasts high compatibility across aqueous, solvent-based, and solvent-free systems, ensuring a defect-free, oil-spot free surface finish. Additionally, it promotes the directional arrangement of matting agents and provides exceptional slip and long-term durability in high-gloss coating systems.
Technical Data
Exterior: Light yellow to amber transparent liquid
Viscosity (25℃, mm2/s): 300-800
Density (25℃): 1.443-1.454
Non-volatile matter content (120℃/2h, %): >97
Application and Addition Amount
Applications:
- Coatings: Automotive, wood, furniture, plastic, industrial, and decorative coatings
- Digital Media: High-performance inkjet inks (UV, solvent, and water-based)
Usage & Dosage:
- Recommended Dosage: Standard: 0.05% – 0.5% of the total formula; UV & Water-based: 0.3% – 1.0% of the total formula
- Incorporation: Add during the paint mixing stage to ensure uniform and optimal distribution
Package
25L/Barrel or 200L plastic/steel Barrel.
Storage
Store in airtight container for 24 months, keep in a cool, dry place.
Transportation
Transport as non-hazardous chemicals.
Special Note
The technical parameters provided are typical reference values only, not official product acceptance standards. Changes may be made without prior notice. Due to varying usage conditions, we cannot guarantee product applicability for specific usages or purposes, and shall not assume liability for any direct, indirect or accidental losses incurred.
Users are recommended to conduct relevant tests or consult our technical team before using the product.
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