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

Wacker VINNAPAS B 500 40 VL Polyvinyl Acetate

Wacker VINNAPAS B 500 40 VL is a low-viscosity, aqueous polyvinyl acetate (PVA) dispersion designed for high-solids formulations in adhesives and construction mortars. It offers excellent green strength, open time, and film formation at ambient temperatures. This eco-friendly, non-toxic, APEO-free binder delivers superior adhesion to porous substrates and complies with global VOC regulations. Ideal for tile adhesives, grouts, and repair mortars requiring rapid setting and robust performance.
  • wacker vinnapas b 500 40 vl polyvinyl acetate_a4080a19
  • wacker vinnapas b 500 40 vl polyvinyl acetate_a4080a19

Features Of Wacker VINNAPAS B 500 40 VL Polyvinyl Acetate

  1. High solids content (≈40 wt%) enabling efficient formulation with reduced water usage.

  2. Low viscosity grade optimized for easy handling, pumping, and incorporation into aqueous systems.

  3. Excellent film-forming capability with good flexibility and adhesion on porous substrates.

  4. Good hydrolytic stability and compatibility with common additives such as dispersants and defoamers.

  5. Designed for low-VOC formulations meeting stringent environmental and regulatory requirements.

Typical Applications Of Wacker VINNAPAS B 500 40 VL Polyvinyl Acetate

  1. Interior wall paints and decorative coatings requiring balanced scrub resistance and open time.

  2. Tile adhesives and cementitious thin-set mortars for improved workability and bond strength.

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

  4. Non-woven fabric binders for technical textiles and filtration media.

  5. Repair mortars and patching compounds where rapid green strength development is critical.

Specifications Of Wacker VINNAPAS B 500 40 VL Polyvinyl Acetate

Chemical TypePolyvinyl acetate (PVA) homopolymer dispersion
Product FormAqueous dispersion
AppearanceWhite to slightly yellowish, milky liquid
Solids Content39–41 wt%
pH Value4.5–5.5
Viscosity (at 20 °C, Brookfield RVT, spindle 3, 20 rpm)≤ 150 mPa·s
Minimum Film Formation Temperature (MFFT)≈ 18 °C
Storage StabilityAt least 6 months at 5–30 °C in original sealed container


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