EFKA® PB 2770 is a 100% active, silicone-free deaerator and defoamer for UV-curable formulations, composites, gel coats, cast resins, and adhesives. Since it is silicone-free, it provides excellent recoatability. It also provides outstanding compatibility.

EFKA PB 2770 is recommended for use in clear and pigmented radiation-curable formulations such as overprint varnishes, UV inkjet as well as for solvent-free unsaturated polyester systems and for pultrusion applications with acrylic, unsaturated polyester, and vinyl ester resins.

The recommended concentration is 0.2 – 1.0% on total formulation.

Features & Benefits

• 100% active silicone-free, polymer-based defoamer​
• Deaerator and defoamer for UV-curable formulations, composites, gel coats, cast resins, and adhesives
• Outstanding compatibility in various systems
• Excellent recoatability​ and hot foil stampability
• Suitable for typical F&F applications like roller and curtain coater

Sustainability highlights

• Low-VOC
• 100% solids
• Suitable for use in solvent-free / high-solids systems

Check out the EFKA BP 2770 Value Card for additional features and benefits

Performance Data

Defoaming in 100% Epoxy-Acrylate

EFKA PB 2770 shows better defoaming (less macro-foam) than benchmarks. Dark Green = Silicone-free Red = Silicone-basee

Polymer-based EFKA PB 2770 avoids foam better than silicone-based and polymer-based benchmarks -> crater prevention.

Performance in 100% Polyester-Acrylate

EFKA PB 2770 shows better defoaming (less macro-foam) than benchmarks. Dark Green = Silicone-free Red = Silicone-based

Polymer-based EFKA PB 2770 avoids foam better than silicone-based and polymer-based benchmarks -> crater prevention.

Defoaming During Application – Curtain Coater

EFKA PB 2770 is a highly efficient defoamer for typical furniture applications like curtain coater.

Properties