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

BASF FoamStar ED 2521 Defoamer

BASF FoamStar ED 2521 Defoamer is a silicone-free, water-dispersible defoaming agent from BASF’s FoamStar ED series. Designed for aqueous industrial processes, it delivers rapid foam suppression and long-term antifoam performance in coatings, adhesives, and cleaning formulations without affecting gloss or substrate wetting.
  • basf foamstar ed 2521 defoamer_e8aadb49
  • basf foamstar ed 2521 defoamer_e8aadb49

Features Of BASF FoamStar ED 2521 Defoamer

  1. Highly effective silicone-free defoaming agent for water-based systems.

  2. Excellent compatibility with anionic, nonionic, and amphoteric surfactants.

  3. Low dosage requirement with rapid foam knock-down and sustained foam suppression.

  4. Good storage stability and resistance to phase separation under ambient conditions.

  5. Designed for low odor and minimal impact on final product clarity or gloss.

Typical Applications Of BASF FoamStar ED 2521 Defoamer

  1. Architectural coatings (e.g., interior/exterior paints and primers).

  2. Industrial maintenance coatings and protective finishes.

  3. Adhesives and sealants formulations, especially waterborne types.

  4. Construction chemicals including cementitious mortars and tile adhesives.

  5. Textile auxiliaries such as dyeing and finishing baths.

Specifications Of BASF FoamStar ED 2521 Defoamer

Chemical TypePolyether-modified polysiloxane blend
Product FormOpaque liquid
AppearanceWhite to off-white, slightly viscous liquid
Primary ApplicationsWaterborne coatings, adhesives, construction chemicals, textile auxiliaries
Key FeaturesSilicone-free, low-foaming, broad compatibility, easy dispersion
BenefitsReduces surface defects, improves application efficiency, enhances film uniformity
pH (1% aqueous solution)6.0 – 8.0
Storage Temperature5 – 30 °C (recommended)


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *