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Waterproofing Membranes

With WACKER, different waterproofing systems can be formulated and optimized. VINNAPAS® polymer dispersions and dispersible polymer powders are ideal for the formulation of 1-component, ready-to-use, pasty waterproofing membranes as well as 1- and 2-component cementitious systems. GENIOSIL® WP silane-terminated polymers are key to liquid waterproofing membranes. VINNEVA® polymer binders enhance the properties of bituminous-based liquid waterproofing systems.

VINNAPAS® dispersible polymer powders provide 1-component (1K) cementitious waterproofing membranes with adhesion and flexibility. The vinyl acetate-ethylene (VAE) grades comply with the requirements of European ecolabels such as Blue Angel, Emicode EC1 plus, etc.

Benefits:

  • Reliable barrier against both negative and positive hydrostatic pressure
  • Water vapor permeability
  • Bridges cracks due to shrinkage or settling of substrate
  • Accommodation of small movements in the substrate
  • Excellent adhesion to many different substrates
  • Excellent adhesion after water immersion
  • High flexibility
  • Improved tensile adhesive strength
  • Excellent workability and easy application (brush, trowel or roller for small-area applications; machine spray application for larger areas)

Applications:

  • Basement walls and foundations
  • Underground parking lots
  • Showers and bathrooms
  • Balconies and terraces
  • Multifunctional rooftops (e.g. rooftop terraces and parking decks)
  • Swimming pools
  • Sewers, canals and water pipes
  • Water tanks (including drinking water)
  • General concrete infrastructures

Good Crack-Bridging Ability

1-component (1K) waterproofing membranes modified with VINNAPAS® polymer powders can accommodate small movements in the substrate forming a reliable barrier against water leakage.

VINNAPAS® vinyl-acetate ethylene (VAE) dispersions are used for 2-component (2K) cementitious waterproofing membranes because they greatly improve adhesion, cohesion and flexibility – even at low temperatures.

VINNAPAS® VAE grades can be easily mixed with other dispersions, as their solid content is high and their viscosity is low. They also provide good shear thinning properties and have practically no impact on the setting behavior of portland cement.

Benefits:

  • Good shear thinning properties
  • Practically no impact on the setting behavior of portland cement
  • Excellent crack-bridging ability
  • Excellent tensile adhesive strength
  • Enhanced cohesion and adhesion to different substrates
  • No odors
  • Low VOC levels

Applications:

  • Basement walls and foundations
  • Underground parking lots
  • Showers and bathrooms
  • Balconies and terraces
  • Multifunctional rooftops (e.g. rooftop terraces and parking decks)
  • Swimming pools
  • Sewers, canals and water pipes
  • Water tanks (including drinking water)
  • General concrete infrastructures

High adhesion bond strength

2K cementitious waterproofing membranes based on VINNAPAS® polymer dispersions easily pass requirements for water impermeability under hydrostatic water pressure (EN 14891).

Adhesion Bond Strength Conditioned in a Wet Environment

High adhesion bond strength

2K cementitious waterproofing membranes based on VINNAPAS® polymer dispersions easily pass requirements for water impermeability under hydrostatic water pressure (EN 14891).

VINNAPAS® silanized styrene-acrylate (S/A) copolymer dispersions are ideal for ready-to-use, 1-component waterproofing membranes. Their special polymer composition makes them inherently hydrophobic, delivering maximum performance even under hydrostatic water pressure and displaying excellent crack-bridging ability.

Benefits:

  • Easy application – no second component is needed
  • Excellent elongation, flexibility and crack-bridging ability at temperatures between 0 °C and room temperature
  • Excellent tensile adhesive strength
  • Reliable barrier against hydrostatic water pressure
  • Enhanced adhesion on many non-porous or non-polar substrates
  • Bridges cracks due to shrinkage or settling of substrate
  • Excellent compatibility with ready-to-use tile adhesives based on the same silanized S/A copolymer dispersion technology

Applications:

  • Basement walls and foundations
  • Underground parking lots
  • Showers and bathrooms
  • Balconies and terraces
  • Multifunctional rooftops (e.g. rooftop terraces and parking decks)
  • Swimming pools
  • Sewers, canals and water pipes
  • Water tanks (including drinking water)
  • General concrete infrastructures

Best Under Pressure

Tests show that ready-to-use, 1-component waterproofing membranes based on VINNAPAS® silanized S/A dispersions withstand hydrostatic water pressure of at least 1.5 bar for a minimum of 7 days.

VINNEVA® polymer binders based on vinyl acetate-ethylene (VAE) copolymers and terpolymers are designed for the modification of bitumen emulsions. VINNEVA® dispersions meet required European and ASTM standards and are suitable for one- (1K) and two-component (2K) systems, delivering exceptional adhesion and durability to bituminous waterproofing coatings.

Compared with conventional SBR and neoprene-based systems, VINNEVA® polymers feature enhanced tear strength and crack-bridging properties, and can easily replace chlorine-containing polymers.

Benefits:

  • Improved adhesion and increased durability
  • Highly compatible with bitumen emulsions
  • Excellent elongation and elasticity
  • Enhanced crack-bridging ability, even at low temperatures
  • Reduced water uptake
  • Shorter drying times
  • Reduced residual tack
  • Reduces or eliminates the need for ammonia and acrylic thickeners

Applications

  • Roofs
  • Basement and foundation coatings
  • Exterior wall coatings
  • Primers for bitumen sheets

GENIOSIL® WP silane-terminated polymers are binders for 1K liquid waterproofing systems based on low-viscosity hybrid polymers with a unique property profile.

These highly stable, long-lasting systems can even be used under inclement conditions such as rain and cold (down to -10 °C) without incident. They dry very quickly and have properties comparable to those of polyurethane-based products – without the use of solvents or plasticizers.

And because the GENIOSIL® WP1 hybrid polymer is based on WACKER’s α-technology, it also eliminates the need for tin catalysts.

Benefits:

  • One-part system
  • Contains no solvent or isocyanate
  • Easy to apply with a roller or airless spray gun
  • Can be used under cold, damp conditions
  • Adheres to substrates without a primer
  • Dries quickly, withstands rain within a short period of time
  • Does not shrink
  • Remains flexible at temperatures between -40 °C and +80 °C
  • Good mechanical and excellent chemical resistance
  • Very easy to work with
  • No need for wearing protective masks or clothing
  • Opens the door to ETAG certification for roof sealing systems

Application range:

  • Waterproofing balconies, courtyards and flat roofs
  • Detailed waterproofing work on rooftop structures such as skylights and air-conditioning systems
  • Horizontal under-tile waterproofing
  • Moisture barrier under floor screeds
  • Horizontal waterproofing that withstands hydrostatic pressure

GENIOSIL® XT silane-terminated polymers are binders for high-strength, elastic 1K waterproofing systems based on low-viscosity hybrid polymers.

Waterproofing systems like these produce little odor and can be applied with no personal protective equipment, even under inclement conditions. They dry very quickly and have properties comparable to those of polyurethane-based products – without the use of solvents or plasticizers. And selecting a product based on alpha-technology also eliminates the need for zinc catalysts.

Benefits:

  • Formulations exhibit considerable mechanical strength yet remain highly elastic
  • Provides reliable waterproofing, even under dynamic stress
  • Outstanding tear resistance coupled with excellent durability
  • Strong without additional reinforcement
  • Highly transparent
  • Finished products last a long time
  • Our alpha-technology enables tin-free catalysis
  • Cures rapidly to form tack-free surfaces
  • Broad adhesive profile
  • Very easy to work with
  • No need for wearing protective masks or clothing

Applications:

  • Strong, highly transparent films
  • Industrial coatings and adhesives; tin-free if needed
  • Crack-bridging seals
  • Liquid waterproofing system for flat roofs, balconies and terraces
  • Waterproofing underneath tiles
  • Waterproofing systems for interior and exterior basement walls
  • Primers with vapor barrier properties
  • Potting compounds for horizontal expansion and movement joints

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