Polymer binders for plasters
Hydrophobicity is a crucial factor in improving resistance to the elements.
Plasters are constantly under attack from heat, cold, moisture and mechanical stress. These forces can cause cracks, algae growth and mold, leading to expensive repair work.
Our VINNAPAS® polymeric binders reliably prevent all that, actively inhibiting damage by improving important plaster properties such as workability, adhesion, flexibility, mechanical resistance, hydrophobicity and resistance to weathering. What’s more, as a component of a thermal insulation render (TIR) or an external thermal insulation composite system (ETICS/EIFS), they also make facades more energy efficient.
Modern plasters – challenges and solutions
Typical challenges:
Our solution:
VINNAPAS® polymeric binders form flexible bridges during the setting process. These bridges link the inorganic components of the plaster to form a durable matrix, thereby enhancing cohesion and adhesion, both within the plaster as well as between the plaster and substrate. At the same time, they also make plasters more elastic and impact resistant, which can offset stresses, such as those produced by temperature fluctuations.
Polymeric binders also improve hydrophobicity, reduce water absorption and dirt build-up, thus making the plaster more resistant to the elements and longer lasting.
Dispersible polymer powders for mineral plasters
VINNAPAS® dispersible polymer powders optimize the quality and service life of mineral plasters, improving adhesion to a variety of substrates, reducing susceptibility to crack formation and more. They make fresh plaster easier to process and allow for good water-vapor permeability in the hardened plaster. Special grades also increase hydrophobicity and prevent damage caused by the elements.
VINNAPAS® improves cohesion and flexibility in the cured plaster, making it more resistant to impacts and crack formation.
Product properties
Dispersible polymer powders for dry-mix mortars based on a flexible terpolymer consisting of vinyl acetate, ethylene and vinyl ester
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Applications:
Polymer dispersions for dispersion-bound plasters
Ready-to-use, dispersion-bound plasters can be processed immediately – no need to stir ahead of time. For plasters like these, we offer a line of VINNAPAS® polymer dispersions that improve mechanical properties and make plasters easier to process.
Dispersion-bound plasters are easy and safe to prepare and then apply at construction sites.
Product properties
Aqueous dispersions of a terpolymer consisting of vinyl chloride, ethylene and vinyl ester for ready-to-use, dispersion-bound plasters
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Polymeric binders for skim coats
Skim coats can be used in interior and exterior applications – either as a finishing plaster or as a substrate for paintwork or wallpaper. VINNAPAS® polymeric binders improve adhesion – including paint adhesion – to a variety of substrates, enhance flexibility and make skim coats easier to process. They also make facades more resistant to weathering and extend their service life.
VINNAPAS® dispersible polymer powder optimize skim coat properties.
Product properties
Dispersible polymer powder for formulating dry-mix mortars
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Polymer binders for thermal insulation renders
As a key component of thermal insulation renders (TIRs), VINNAPAS® polymeric binders improve adhesion and boost the energy efficiency of facades many times over. Special grades also increase hydrophobicity and prevent damage caused by the elements. Depending on the insulating properties required, the thickness of TIRs will vary between 2 and 10 cm, to which a 3 – 5 mm thick base coat and a 1.5 – 3 mm thick finishing coat are applied.
Product properties
Dispersible polymer powder for formulating dry-mix mortars
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Applications:
Plaster FAQs
What advantages do VINNAPAS® binders offer in plasters?
VINNAPAS® polymer dispersions and dispersible polymer powders improve flexibility, adhesion and hydrophobicity in interior and exterior plasters, thus significantly reducing crack formation, moisture damage and algae growth. In addition, VINNAPAS® binders optimize the processing properties of plasters.
How do WACKER binders affect the energy efficiency of facades?
As an essential component of thermal insulation renders (TIRs), WACKER binders help optimize the energy efficiency of facades. If used in an external thermal insulation composite system (ETICS), they improve adhesion between the layers, thereby enhancing the stability and longevity of the system as a whole.
What types of plasters work well with VINNAPAS® products?
WACKER offers solutions for mineral plasters, dispersion-bound plasters, skim coats and thermal insulation renders. These products optimize dry-mix mortar formulations and ready-to-use systems in interior and exterior applications.
Why add binders to skim coats?
In addition to improving skim coat adhesion to concrete, lightweight concrete, cement fiberboard and other substrates, VINNAPAS® polymeric binders also optimize flexibility, prevent cracking and improve paint adhesion.
