BASF FoamStar Defoamer
Product Description
The BASF FoamStar series delivers high-performance defoamers engineered to address foam challenges in waterborne coatings, varnishes, and printing inks. Combining polymer dispersions, silanes, and modified PDMS chemistries, these additives ensure rapid bubble collapse while maintaining compatibility with acrylic, polyurethane, and PVC resin systems.
Their low-VOC profiles align with stringent environmental regulations, supporting eco-friendly formulations in curtain, roller, and spray applications .
With hydrolytic stability and long-lasting foam suppression, the products optimize production efficiency and final coating aesthetics across diverse substrates, including metals and porous surfaces .
Product Data
| Model | Chemical Composition | Active Ingredient | Recommended Dosage |
| FoamStar A38 | Organic-modified polysiloxane + hyperbranched polymer | 100% | 0.25–0.5% |
| FoamStar ST2410AC | Polymer-mineral oil composite | 100% | 0.03–0.5% |
| FoamStar SI2293 | Modified polydimethylsiloxane solution | / | 0.5–1.5% |
| FoamStar SI2280 | Modified polydimethylsiloxane | 100% | 0.1–1.0% |
| FoamStar SI2250 | Modified polydimethylsiloxane | 100% | / |
| FoamStar SI2292 | Silicone-based | 69–71% | 0.5–1.5% |
| FoamStar SI2213 | Defoaming polymers + silicone/emulsifiers | 100% | 0.1–1.0% |
Application
1.Architectural Coatings: Ideal for low-PVC and high-gloss latex paints, ensuring bubble-free finishes
2.Industrial Coatings: Used in acrylic, polyurethane, and epoxy systems for automotive, metal, and wood coatings
3.Printing Inks: Enhances foam control in acrylic and solvent-based ink systems without compromising print quality
4.Polymerization Processes: Effective in PVC, vinyl acetate, and acrylic emulsion production, preventing foam during synthesis
