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| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact Export Director now ↓ |
Polyester Leveling Agent 4358: Technical Overview
Polyester leveling agent 4358 is a specialized additive designed to improve film formation and surface smoothness in powder coatings. Below is a structured technical summary:
| Property | Specification |
|---|---|
| Chemical Type | Polymeric surface-active agent |
| Appearance | White to off-white powder |
| Compatibility | Polyester, hybrid, and epoxy powder coatings |
| Recommended Dosage | 0.5–2.0% of total formulation weight |
| Function | Reduces surface tension, eliminates defects |
| Benefit | Description |
|---|---|
| Improved Flow | Minimizes orange peel and cratering |
| Enhanced Substrate Wetting | Promotes uniform coating adhesion |
| Defect Reduction | Prevents pinholes and fisheyes |
| Gloss Enhancement | Increases surface smoothness and reflectivity |
| Feature | Polyester Leveling Agent 4358 | Generic Acrylic Leveler |
|---|---|---|
| Compatibility | Optimized for polyester resins | Broad but less effective |
| Thermal Stability | Stable up to 250°C (482°F) | Degrades above 200°C (392°F) |
| Gloss Impact | Higher gloss retention | Moderate improvement |
| Coating Type | Recommended Dosage | Key Considerations |
|---|---|---|
| Polyester Coatings | 1.0–1.5% | Ideal for high-gloss finishes |
| Hybrid Coatings | 0.5–1.0% | Prevents flow separation |
| Epoxy Coatings | 0.8–1.2% | Use with low-BPA systems |
| Step | Instructions |
|---|---|
| Premixing | Blend evenly with base resin before extrusion |
| Extrusion | Process at 90–110°C (194–230°F) |
| Curing | Compatible with standard curing cycles |
| Challenge | Mitigation Strategy |
|---|---|
| Overuse Hazards | Limit to ≤2% to avoid excessive flow |
| Storage Sensitivity | Store in dry conditions to prevent clumping |
| Cost Impact | Optimize dosage for cost-performance balance |
Polyester leveling agent 4358 significantly enhances coating aesthetics and functionality, particularly in polyester-based systems. Its targeted performance and thermal stability make it a preferred choice for high-quality finishes in architectural, automotive, and industrial applications.
4358 Can be used in solvent type, solvent-free polyester type leveling agent. Suitable for paint, ink, adhesive system, without silicone, can reduce the surface tension and improve the flow,smoothness.
Polyester-type high polymer polymer
Typical materialized data
surface:Light yellow liquid
%density of active:50%
ingredient s g /cm ²: About 1.0
dissolvant:xylene
1. Excellent flow and smoothness.
2, has good compatibility with most resins, especially the polar system.
3. Improve the material wettability of the substrate. application area This agent is recommended for all solvent-based, solvent-free
coatings, printing inks and covering oil.
Recommended addition quantity ( calculated by supply form )
0.05-0.3% dosage (supplied form) can be added up to 1% based on the total formulation UV system. The above recommended amount is for reference only, and the optimal amount should be determined through a series of tests.
The aid can be added at any production stage, including post-addition.
1. Avoid direct contact with the skin.
2. If you accidentally contact the skin, please immediately rinse the skin with soapy water and rinse with water.
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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