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

Wacker VINNAPAS B 500 20 VL Polyvinyl Acetate

Wacker VINNAPAS B 500 20 VL is a vinyl acetate-based aqueous polymer dispersion designed for high-performance adhesives and construction mortars. It offers excellent green strength, water resistance, and open time. This low-viscosity, vinyl acetate-ethylene copolymer delivers superior film formation and substrate adhesion. Widely used in tile adhesives, grouts, and repair mortars across global building markets.
  • wacker vinnapas b 500 20 vl polyvinyl acetate_b30779be
  • wacker vinnapas b 500 20 vl polyvinyl acetate_b30779be

Features Of Wacker VINNAPAS B 500 20 VL Polyvinyl Acetate

  1. High solids content (≈50%) enabling efficient formulation with reduced water load.

  2. Low viscosity grade for excellent processability and easy incorporation into aqueous systems.

  3. Good film-forming capability at ambient temperatures without added coalescing agents.

  4. Excellent adhesion to porous substrates such as concrete, plaster, and wood.

  5. Stable in neutral to mildly alkaline formulations, compatible with common construction additives.

Typical Applications Of Wacker VINNAPAS B 500 20 VL Polyvinyl Acetate

  1. Cementitious tile adhesives for interior wall and floor installations.

  2. Repair mortars and leveling compounds requiring enhanced flexibility and bond strength.

  3. Exterior insulation finishing systems (EIFS) base coats and reinforcing layers.

  4. Waterproofing slurries and protective coatings for masonry substrates.

Specifications Of Wacker VINNAPAS B 500 20 VL Polyvinyl Acetate

Chemical TypePolyvinyl acetate (PVA) homopolymer dispersion
Product FormAqueous dispersion
AppearanceWhite, slightly opalescent liquid
Solids Content49–51 wt.%
pH Value (25 °C)4.5–5.5
Viscosity (ROTAVISC, 20 °C, spindle LV3, 6 rpm)150–400 mPa·s
Minimum Film-Forming Temperature (MFFT)≈0 °C
Storage Stability (20 °C, 3 months)Stable, no sedimentation or coagulation


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