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

Wacker VINNAPAS B 1,5 Spezial Polyvinyl Acetate

Wacker VINNAPAS B 1.5 Spezial is a high-purity, low-viscosity polyvinyl acetate dispersion designed for premium adhesives and construction mortars. It offers excellent film formation, adhesion to porous substrates, and freeze-thaw stability. Ideal for tile adhesives, grouts, and dry-mix formulations requiring consistent rheology and enhanced bond strength under variable curing conditions.
  • wacker vinnapas b 1 5 spezial polyvinyl acetate_ac6bd005
  • wacker vinnapas b 1 5 spezial polyvinyl acetate_ac6bd005

Features Of Wacker VINNAPAS B 1,5 Spezial Polyvinyl Acetate

  1. Highly optimized for excellent open time and workability in tile adhesives and cementitious renders.

  2. Provides superior green strength development and early adhesion to low-absorbent substrates such as porcelain tiles and concrete.

  3. Enhances flexibility and crack bridging capacity without compromising cement compatibility.

  4. Low residual monomer content ensures compliance with stringent VOC and safety regulations.

  5. Consistent batch-to-batch performance due to controlled polymerization and rigorous quality control.

Typical Applications Of Wacker VINNAPAS B 1,5 Spezial Polyvinyl Acetate

  1. Cement-based tile adhesives (C1 and C2 classifications per EN 12004).

  2. Exterior thermal insulation composite systems (ETICS) base coats and finishing renders.

  3. Repair mortars and self-leveling underlayments requiring enhanced cohesion and substrate bonding.

  4. Waterproofing slurries and flexible cementitious coatings for wet-area applications.

  5. Grouts and joint fillers where improved deformability and reduced shrinkage are critical.

Specifications Of Wacker VINNAPAS B 1,5 Spezial Polyvinyl Acetate

Chemical TypePolyvinyl acetate (PVAc) homopolymer dispersion
Product FormAqueous dispersion (non-ionic stabilizer system)
AppearanceWhite, slightly opalescent liquid
Solids ContentApprox. 55 wt.%
pH Value4.5–5.5
Viscosity (20 °C, Brookfield RVT, spindle 3, 2 rpm)1,500–3,500 mPa·s
Minimum Film Formation Temperature (MFFT)≈ 15 °C
Residual Vinyl Acetate Monomer< 100 ppm


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