ASTRA DF NS®
Non-Silicone Defoamers
Non-silicone defoamers for processes where silicone is undesirable (food packaging, auto coatings, electronics). Fast foam destruction without silicone contamination risk.
When do we need silicone-free defoamers?
In food packaging, automotive recoat, electronics and many high-performance applications silicone contamination is unacceptable. Non-silicone defoamers from ASTRA control foam without compromising recoatability, adhesion or transparency.
Key Benefits
- Silicone-Free formula — safe for recoat and overspray
- No effect on inter-coat adhesion
- Food packaging compliant
- Suitable for clear and transparent coatings
- Effective in waterborne and solvent systems
- Good long-term stability
Impact on Coating Performance
For sensitive industries where silicone defects are a deal-breaker, ASTRA DF NS provides reliable defoaming without risk. Perfect for automotive refinish, can coatings and food contact applications.
O – organosoluble, WB – water-based, RC – radiation-curable
Product Catalog
Download TDS| Active % | Feature | TDS | Samples | |||
|---|---|---|---|---|---|---|
| ASTRA DF NS-1007NS | — | Solvent-based / Radiation-curable | 100% | Specially developed for UV-curing systems, epoxy and polyester systems. Excellent compatibility, prevents foaming. | ||
| ASTRA DF NS-107NS | AC-2000 | Solvent-based / Radiation-curable | 7% | Excellent compatibility, low shrinkage, suitable for medium and high polarity systems (UV-curable systems, epoxy, unsaturated polyesters). Has little effect on transparency. | ||
| ASTRA DF NS-1107NS | Disparlon P-420 | Solvent-based / Radiation-curable | 100% | Specially developed for UV-curing systems, epoxy and polyester systems. Excellent compatibility, prevents foaming. | ||
| ASTRA DF NS-1207NS | BYK-055 | Radiation-curable | 25% | Excellent compatibility, very low shrinkage tendency. Particularly suitable for systems of medium and high polarity (UV-curable systems). Low influence on film transparency. | ||
| ASTRA DF NS-1307NS | VERSION OF ASTRA-1207NS | Solvent-based / Radiation-curable | 50% | Excellent compatibility, very low shrinkage tendency. Particularly suitable for systems of medium and high polarity (UV-curable systems). Low influence on film transparency. | ||
| ASTRA DF NS-1407NS | BYK-057，EFKA-2720, BYK A 501 | Solvent-based / Radiation-curable | 100% | Good compatibility. Particularly suitable for epoxy systems and unsaturated polyester systems. | ||
| ASTRA DF NS-1507NS | BYK-A 501; BYK-A 555; Version of ASTRA-1407NS | Solvent-based / Radiation-curable | 100% | Good compatibility. Particularly suitable for epoxy systems and unsaturated polyester systems. | ||
| ASTRA DF NS-1607NS | — | Solvent-based / Radiation-curable | 100% | High efficiency. Low tendency to form craters. | ||
| ASTRA DF NS-1707NS | BYK-1790 | Solvent-based / Radiation-curable | 20% | Strong antifoam with low cratering tendency. Suitable for coil coating systems, epoxy systems. | ||
| ASTRA DF NS-1807NS | BYK-1790 | Solvent-based / Radiation-curable | 100% | High efficiency. Low tendency to form craters. Particularly suitable for coil coating systems, epoxy and UV curing systems. |
Articles about ASTRA DF NS®
Knock Foam Down in One Shift: Plant R D Playbook for Polymer Emulsions
Knock Foam Down in One Shift: Plant R D Playbook for Polymer Emulsions ! Polymer emulsion foam title card illustration The fastest, most reliable way to control foam in emulsion polymerization is a compatibly tuned silicone-polyether defoamer, or a screened mineral or molecular alternative, dosed at…
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Formulators: Process First Foam Control for Mixing (Save up to 8%)
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5 Variables Formulators Must Screen Before Custom Defoamer Formulation
5 Variables Formulators Must Screen Before Custom Defoamer Formulation ! Decorative custom defoamer formulation title card A custom defoamer formulation is justified once an off-the-shelf product fails repeatedly under real process conditions, whether from extreme pH, high surfactant load, elevated…
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