Elastosil eco 7770 P is weather resistant and is suitable for interior as well as exterior applications. Wacker applied a distinctive formulation concept in the manufacturing of the new sealant. Based on a special non-volatile silicone softener, it is formulated such that it cannot penetrate the pores of natural stone like marble, granite or sandstone. This means that the stone substrates adjacent to the joint are not hydrophobized. The natural stone remains spot- and flawless. Wacker uses biomethanol in the formulation of Elastosil eco 7770 P which saves resources. It is the first silicone sealant to be offered exclusively as an eco-product.
Construction
With the aim of reducing CO2 emissions, the cement industry is increasingly switching its production to Portland composite cements (CEM II). This has serious consequences for several dry-mix mortar products such as tile adhesives. The tensile adhesion strength of these products after immersion in water often does not comply with the applicable standards.
Recent studies by Wacker show that tile adhesives based on CEM II cement can indeed achieve the tensile adhesion strength values to meet the requirements of the relevant standards. This is only possible when polymer binders that contain a special terpolymer instead of a standard vinyl acetate-ethylene copolymer (VAE) are used for improving the tile adhesive formulations. At this year’s ECS, Wacker will be presenting three dispersible polymer powders - Vinnapas 8118 E, Vinnapas 8620 E and Vinnapas 7220 E - that are suitable for formulating such tile adhesives.
Additional product highlights:
- Vinnol L6868: Thanks to its very low molecular weight, the product represents the perfect solution for formulators of coatings and printing inks who deal with challenges relating to flow, intercoat adhesion, and flexibility in UV-curing systems. Areas of application include printing inks, plastic coatings, wood coatings, paper coatings and film coatings. Vinnol L-6868 can also be used to coat solvent-based food-contact packaging.
- Silres BS 6920: In order to prevent signs of wear and unsightly stains, wear-resistant coatings are usually used for sealing concrete and flowing-screed floors. The silane-based binders Silres BS 6920 and Silres BS 6921 from Wacker can be used to create solvent-free formulations for thin coatings with varying degrees of hardness and elasticity. Such 1K sealing compounds are suitable for treating floors in need of repair and for synthetic-resin-bound stone carpets.
Silicone resin emulsion paints (SREP): Silicone resins from Wacker ensure high water-vapor permeability and extremely low water absorption. This protects building exteriors from weather influences and dirt pickup, which, consequently, helps retain the value and longevity of the structure.
- Cement protection: Silanes and siloxanes have a long track record as water-repellent agents. They combine outstanding water-repellency with durability and outperform rival product classes in their resistance to physical and chemical influences and algae. Their excellent water repellency comes without significantly impairing water-vapor permeability. At ECS 2025, Wacker will present a range of its protection products for concrete surfaces. Such products are certified in accordance with European building protection standard EN 1504-2.
- Waterproofing membranes: Wacker provides solutions for a wide range of waterproofing membranes. Vinnapas polymer dispersions and dispersible polymer powders are ideal for the formulation of one-component, ready-to-use, pasty waterproofing membranes as well as one-component and two-component cementitious systems. At ECS 2025, Wacker is all set to showcase a wide range of tried-and-tested products that exhibit excellent water resistance characteristics.
- Insect repellents: Cavamax and Cavasol cyclodextrins are capable of encapsulating hydrophobic molecules in a reversible, equilibrium-controlled process. This allows encapsulated essential oils to be added to water-borne paints and coatings to give them a long-lasting insect repellent effect.
