Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Korning FoamStar ED2521 Defoamer

Korning FoamStar ED2521 is an excellent antifoaming agent for matte to satin water-based coatings. It suppresses foam superbly without reducing gloss or causing haze, performing well in grinding and application. Effective after long storage, it integrates easily without high shear, using eco-friendly polymer tech. VOC-free, EU (2002/42/EC) and US EPA24 compliant with low SVOC, it works in high PVC water-based architectural coatings (styrene/acrylic, vinyl/VeoVa, vinyl acrylic emulsions) at 0.2%-0.6% dosage.

Features Of Korning FoamStar ED2521 Defoamer

  1. Exceptional antifoaming agent for matte to satin water-based coatings.

  2. Offers outstanding foam suppression without gloss loss or haze.

  3. Maintains efficacy after prolonged storage and integrates easily without high shear forces.

  4. Uses eco-friendly polymer technology; VOC-free with very low SVOC content.

  5. Compliant with EU regulations (2002/42/EC) and US EPA24 standards.

  6. Recommended dosage: 0.2% to 0.6% of the total formulation.

Typical Applications Of Korning FoamStar ED2521 Defoamer

  1. Suitable for various matte to satin water-based coatings.

  2. Particularly effective for high PVC systems in water-based architectural coatings.

  3. Ideal for coatings based on styrene/acrylic, vinyl/VeoVa, and vinyl acrylic emulsions.

  4. Applied in grinding and application processes to ensure superior performance.

Specifications Of Korning FoamStar ED2521 Defoamer

Product Name
FoamStar ED2521
Chemical Type
Defoamer for waterborne coatings
Product Type
Emulsion defoamer
Solid Content
~20%
VOC Content
<0.1%
Recommended System
Water-based system
Product Features
Easy to blend; provides good foam suppression during grinding and application; retains good defoaming performance after long-term
storage; extremely low SVOC; suitable for all flat to semi-gloss waterborne coatings, especially recommended for high-PVC systems
based on styrene-acrylic, vinyl/vinyl acetate and vinyl-acrylic emulsions
Application Areas
Waterborne clear coatings; high-gloss paints in architectural coatings (kitchen and bathroom), interior wall coatings, exterior
wall coatings, facade decorative paints (plaster, concrete), etc.


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