Solvent-borne, Speciality Additive, Wetting & Levelling Agent

VP 7390 Polyacrylate Levelling agent

7390 Polyacrylate Levelling Agent is a specialized, silicone-free surface additive engineered to optimize the topographical uniformity of high-performance coatings. Functioning primarily through the reduction of surface tension gradients, this modifier facilitates exceptional substrate wetting and promotes the elimination of common surface defects such as craters, pinholes, and orange peel. Unlike silicone-based alternatives, the 7390 grade offers superior recoatability and does not interfere with intercoat adhesion, making it an ideal choice for multi-layer coating systems. Its chemical composition, based on modified polyacrylates, ensures long-term stability and compatibility with various resin matrices, including epoxies, polyurethanes, and polyesters. By migrating to the air-liquid interface, the agent creates a homogeneous surface tension environment, which stabilizes the film during the critical drying and curing phases. This results in a high-gloss, mirror-like finish that meets the rigorous aesthetic and functional standards of modern industrial, automotive, and decorative applications across the global markets and industrial coating sectors.

Attributes

Key Features and Benefits

Elimination of Surface Defects: Effectively prevents cratering, fish-eyes, and crawling by balancing surface tension across the film.
Superior Recoatability: Silicone-free formulation ensures excellent intercoat adhesion and zero risk of silicone contamination in sensitive paint shops.
Enhanced Optical Properties: Significantly improves Distinctness of Image (DOI) and gloss by promoting a perfectly smooth, level surface.
Air Release Properties: Assists in de-aeration, reducing the risk of pinholes during fast-curing or high-build application processes.
Substrate Wetting: Enhances the ability of the coating to wet low-energy substrates, ensuring a uniform and continuous film layer.

Specifications

Technical Highlights

Chemical Identity: Modified polyacrylate polymer (CAS verification: Often categorized under CAS 26376-86-3 for regulatory acrylate copolymer registration).
Active Content: Typically supplied as 100% active matter or high-solids solution to minimize VOC contributions.
Density: Approximately 0.95–1.05 g/cm³ at 20°C, allowing for easy volumetric dosing and integration.
Solubility: Broad compatibility with aromatics, esters, and ketones; optimized for solvent-borne and UV-curable resin systems.
Dosage Efficiency: Highly effective at low concentrations, generally ranging from 0.1% to 1.0% based on total formulation weight.
Thermal Stability: Maintains leveling performance throughout high-temperature baking cycles.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Automotive Coatings: Utilized in OEM clearcoats and refinish systems to achieve premium mirror finishes and high weather resistance.
Industrial Finishes: Applied in machinery and metal coatings to ensure smooth coverage over complex geometries and varied textures.
Wood Coatings: Enhances leveling in solvent-based lacquers and UV-curable finishes for high-end furniture and architectural cabinetry.
Coil Coatings: Optimizes flow in high-speed application processes, preventing surface irregularities during rapid, high-heat curing stages.
Protective Coatings: Essential for heavy-duty anti-corrosion systems where film integrity and uniform thickness are critical for substrate protection.