Wacker launches new polymeric binders adhesives, construction applications

Wacker launches new polymeric binders

6:47 AM, 14th March 2017
Wacker polymeric binders
Caulk and sealant applications based on the new dispersion VINNAPAS EAF 7815 show excellent workability, reduced odour and cost-in-use advantages.

MUNICH, GERMANY/DUBAI, UAE: Wacker Chemie AG said that it is launching several novel polymeric binders to optimise the performance of adhesives and construction applications. The vinyl acetate-ethylene copolymer (VAE) dispersion VINNAPAS EP 6420 offers best-in-class performance for nozzle applications, while VINNAPAS EP701K provides the best choice for various difficult-to-bond substrates.

The polymeric modifier VINNACEL 201 is an economic solution for ready-to-mix hydrophobic plasters, tile grouts and skim coats. Caulk and sealant applications based on the dispersion VINNAPAS EAF 7815 show excellent workability, reduced odour and cost-in-use advantages. Further highlights are binders of the PRIMIS range for high-performing exterior coatings and SILRES BS additives for the water-repellent, yet vapor-permeable masonry coatings.

Wacker is going to introduce two new VAE dispersions specifically developed for the needs of the regional adhesives industry. For formulating water-based adhesives in demanding paper and packaging applications, Wacker is presenting the new VINNAPAS EP 6420.

This all-purpose VAE binder offers best-in-class performance for nozzle applications, showing excellent running stability without skin formation. Additionally, it demonstrates a good adhesion/cohesion balance, outstanding cleanability, high setting speed and enhanced machine processing. VINNAPAS EP 6420 allows for formulations with a very broad range of viscosities due to its optimal viscosity and solids content, as well as it's high sedimentation stability when diluted to low viscosities.

For difficult-to-bond substrates that require increasingly better adhesion, Wacker has developed the new VINNAPAS EP 701K. With its higher ethylene content and a rather low glass transition temperature (Tg -10 °C), the VAE dispersion is an ideal base to bond even challenging surfaces.

Because of its high bonding strength, quick setting speed and good machine run ability, VINNAPAS EP 701K are perfectly suited for laminating plastic films to coated and uncoated paper. Typical applications include paper bags and boxes, book covers or PVC (polyvinyl chloride) film lamination for furniture. As no external plasticisers are necessary due to the chemical composition of VINNAPAS EP 701K, it also enables the formulation of adhesives with low migration potential.

VINNACEL 201: for economic and water-repellent construction

The new VINNACEL 201 is polymeric modifier specifically designed for the needs of the region the Middle East and Africa. As the VAE-based powder is simply added to local mortars, VINNACEL 201 is an easy-to-use solution to professionally modify dry-mix mortars with one single additive to improve the workability.

At the same time, the product significantly reduces the water absorption, especially in exterior applications. In plasters, tile grouts or skim coats, the powder offers protection against the salt formation, efflorescence and dirt pick-up. Further notable are its enhanced bond, compressive and flexural strength. Thus, mortars can be easily and efficiently improved for higher building and living quality. VINNACEL 201 is, therefore, an economic solution for water- and weather-resistant decorative plasters that offer good quality and colour stability while at the same time being cost-efficient and easy to use.

VINNAPAS EAF 7815: for versatile caulk and sealant applications

For both building and renovation work, Wacker introduces VINNAPAS EAF 7815, a dispersion based on vinyl acetate, ethylene and acrylate. The product is an ideal binder for diverse caulks and sealants applications, such as sealing joints on windows, staircases or doors, cracks in walls, or HVAC (heating, ventilation and air conditioning) systems to prevent air leakage.

VINNAPAS EAF 7815 offers a good crack resistance, high elongation and bonding strength, and excellent adhesion to various substrates, especially on concrete and PVC. Plus, the dispersion enables the formulation of paintable and even fire-retardant caulks and sealants. It's excellent workability, reduced odour and cost-in-use advantages make VINNAPAS EAF 7815 perfectly suited for versatile caulk and sealant applications.

Further Wacker highlights:

• Effective Building Protection with SILRES BS

Water-repellent SILRES BS additives paint rank among the most advanced facade coating systems with highly functional properties: they are hydrophobic yet permeable to water vapour, have a mineral appearance and are characterised by high hiding power and extreme long-life cycle. Thus, the environmentally-compatible SILRES BS products enable water-repellent masonry coatings for long-term building protection.

• For Bright Colours: PRIMIS AF 1000

The binder PRIMIS AF 1000 combines organic and mineral components to deliver a completely novel property profile: The elastic, acrylic-ester-based organic component offers strong adhesion and cohesion, good mechanical properties and enhanced processability. The solid mineral components, on the other hand, have outstanding protective properties and ensure long-lasting, bright colours and reduced dirt and sand pick-up.

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