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

BASF Acronal ECO 7521 Waterproofing Emulsion

BASF Acronal ECO 7521 Waterproofing Emulsion is a sustainable, low-VOC acrylic polymer dispersion designed for high-performance waterproof coatings. Part of BASF’s eco-conscious Acronal ECO series, this styrene-acrylic emulsion delivers excellent water resistance, adhesion, and film formation on concrete and masonry—ideal for green building applications where durability and environmental compliance are essential.
  • basf acronal eco 7521 waterproofing emulsion_312bcc6c
  • basf acronal eco 7521 waterproofing emulsion_312bcc6c

Features Of BASF Acronal ECO 7521 Waterproofing Emulsion

  1. Low-VOC, eco-premium acrylic copolymer emulsion designed for sustainable waterproofing formulations.

  2. Excellent alkali resistance for durable performance in cementitious and mineral-based substrates.

  3. High film flexibility and crack-bridging capability to accommodate substrate movement.

  4. Fast drying with good early water resistance, enabling efficient processing and recoating.

  5. Optimized for compatibility with common construction additives including defoamers, thickeners, and fillers.

Typical Applications Of BASF Acronal ECO 7521 Waterproofing Emulsion

  1. Cementitious waterproofing slurries for basements, balconies, and terraces.

  2. Flexible tile adhesives and grouts requiring enhanced moisture resistance.

  3. Exterior render systems (ETICS base coats) exposed to weathering and thermal cycling.

  4. Waterproofing membranes for below-grade concrete structures and foundations.

Specifications Of BASF Acronal ECO 7521 Waterproofing Emulsion

Chemical TypeAcrylic copolymer emulsion
Product FormWhite to slightly bluish opaque liquid
AppearanceHomogeneous, free-flowing dispersion
Primary ApplicationsWaterproofing slurries, flexible renders, tile adhesives
Key FeaturesLow VOC, alkali-resistant, flexible film formation
BenefitsSustainable formulation support, improved durability, reduced cracking risk
pH (at 23 °C)7.5 – 8.5
Minimum Film Formation Temperature (MFFT)≈ 12 °C


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