5053 Silicone-free defoamer is a polymer-based additive specifically engineered for solvent-borne and high-solids coating systems where silicone contamination must be strictly avoided. Unlike tradi…
Silicone-Free Composition: Eliminates risks of surface defects like craters, fish-eyes, or orange peel, often associated with siloxane migration.
Inter-coat Adhesion: Maintains excellent bonding between layers, making it ideal for multi-coat automotive and industrial painting processes.
Rapid Deaeration: Effectively removes micro-foam and entrapped air during high-speed application or high-viscosity mixing.
Universal Compatibility: Highly effective in polar and non-polar solvent systems, including acrylics, epoxies, and alkyds.
Gloss Retention: Does not impair the optical clarity or gloss levels of clear coats and high-pigment-volume-concentration finishes.
Processing Stability: Remains active even under high shear conditions during pigment grinding stages to ensure consistent defoaming throughout production.
规格
技术亮点
Chemical Nature: Formulated from advanced foam-destroying polymers dissolved in aromatic hydrocarbons or tailored solvent blends.
Non-Volatile Content: Typically ranges between 20% to 25%, ensuring a concentrated active profile for low-dosage effectiveness.
Density: Approximately 0.85 to 0.89 g/cm³ at 20°C, facilitating easy incorporation into most liquid resin systems.
Flash Point: Optimized for safety in industrial environments, generally exceeding 40°C.
Mechanism: Operates via controlled incompatibility, creating local surface tension gradients that cause air bubble membranes to rupture instantaneously.
Storage Stability: Excellent shelf life performance in original sealed containers, resistant to phase separation and ambient temperature fluctuations during long-term warehouse storage and handling.
实际行业应用
应用领域
Automotive OEM and Refinish: Essential for basecoats and clearcoats where flawless surfaces and interlayer bonding are critical.
Industrial Coatings: Used in heavy-duty protective coatings, machinery finishes, and coil coatings to prevent air entrapment and pinholes.
Wood Finishes: Ideal for solvent-based lacquers and acid-cured coatings, ensuring smooth, defect-free surfaces on various porous substrates.
Printing Inks: Effectively manages foam in gravure and flexographic inks without affecting print quality, color intensity, or ink transfer.
Floor Coatings: High-solids epoxy and polyurethane floorings benefit from rapid air release during the critical self-leveling phase.
General solvent-borne systems: Applicable in any high-transparency coating requiring extremely stringent gloss.
