
ASTRA LA NS®
Non-Silicone Leveling Agents
Non-silicone leveling agents for processes where silicone is undesirable. Improve flow and leveling, providing smooth even surfaces.
Why use silicone-free leveling agents?
In automotive refinish, food packaging and electronics, silicone contamination is unacceptable. Non-silicone leveling agents from ASTRA provide smooth, even finishes without compromising recoatability or adhesion.

Key Benefits
- Silicone-free — safe for recoat and overspray zones
- No inter-coat adhesion issues
- Smooth, even finish
- Compatible with waterborne and solvent systems
- Crater prevention on difficult substrates
- Ideal for automotive refinish
Impact on Coating Performance
ASTRA LA NS leveling agents deliver professional-grade finishes in sensitive applications where silicone is prohibited. Critical for automotive refinish, can coatings and food contact materials.
O – organosoluble, WB – water-based, RC – radiation-curable
Product Catalog
Download TDS| Active % | Feature | TDS | Samples | |||
|---|---|---|---|---|---|---|
| ASTRA LA NS-105NS | BYK-358N | Solvent-based / Radiation-curable | 50% | Good compatibility, ensures leveling and good wetting of the substrate. | ||
| ASTRA LA NS-1105NS | BYK-380 | Solvent-based / Water-based | 50% | Good compatibility, strong wetting ability. Provides system alignment. Applicable to water-based and organosoluble systems. | ||
| ASTRA LA NS-1205NS | BYK-381 | Water-based | 50% | Good compatibility, good wetting ability. Provides system alignment. Reduces surface tension of the system. | ||
| ASTRA LA NS-1305NS | EFKA-3600 | Solvent-based | 100% | Provides fast and effective leveling, has good compatibility. Reduces surface tension and prevents cratering. | ||
| ASTRA LA NS-1505NS | — | Solvent-based | 100% | Provides fast and effective system alignment, good compatibility with resins. Can significantly reduce surface tension, prevents crater formation. For solvent-based and solvent-free systems | ||
| ASTRA LA NS-1605NS | — | Solvent-based | — | Improves paint adhesion and helps eliminate coating defects (craters, shagreen). | ||
| ASTRA LA NS-205NS | — | Solvent-based / Radiation-curable | 50% | Good compatibility, ensures alignment. Reduces surface tension of the system. | ||
| ASTRA LA NS-605NS | EFKA-3777, DC 837 | Solvent-based / Radiation-curable | 70% | Highly effective additive, provides fast leveling. Can reduce the surface tension of the system, prevents the formation of craters. | ||
| ASTRA LA NS-805NS | BYK-354, BYK S 706 | Solvent-based / Radiation-curable | 50% | Effectively ensures system alignment and can act as a defoamer. Not applicable in transparent systems. |
Articles about ASTRA LA NS®

Flow vs. Leveling in Coatings: A Formulator's Guide
Flow vs. Leveling in Coatings: A Formulator's Guide !
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Fisheyes in Paint: Causes, Prevention, and Repair
Fisheyes in Paint: Causes, Prevention, and Repair ! Close-up of fisheye paint defects on metal panel Fisheyes in paint are small, circular craters that form in a wet film immediately after spraying, where surface contamination or a surface-tension imbalance has repelled the coating from the substrat…
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The Complete Guide to Coating Additives: Selection, Chemistry, and Formulation
A senior formulator's reference to the ten functional additive families that determine whether a coating works in the lab, on the line, and in the field.
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