Hybrid Materials

At a Glance

The innovative hybrid polymers from WACKER are the result of intensive research with the aim of developing adhesives and sealants that achieve optimum performance, in particular high strengths and easier handling, while fulfilling strict environmental requirements. Hybrid polymers are silane-curing organic polymers that combine the typical advantages of silicones and polyurethanes. Hybrid polymers have extremely low viscosity and therefore do not require the addition of plasticizers and solvents, or a tin catalyst for the production of adhesives and sealants. The curing mechanism used is alpha-silane technology, since alpha-based hybrid agents allow the formulation of adhesives and sealants with no health risks, which do not require classification as a hazardous substance. The low viscosity of the hybrid polymers ensures easy of processing, a wide formulation tolerance and outstanding mechanical properties. Because of their fast curing rate, hybrid polymers harden rapidly and without blistering and adhere to many conventional materials without a primer. WACKER markets its hybrid polymers under the product names GENIOSIL® STP-E and GENIOSIL® WP. Products of these series are used in a variety of different adhesive and sealant applications.

Thanks to their outstanding combination of properties, hybrid polymers are used in industrial applications as well as do-it-yourself applications. As high-quality environmentally friendly binders, they offer an ideal alternative to traditional binders for bonding and jointing, for example in construction applications, including cover strips, mirrors and lighting systems, in traditional bonding applications for wood and parquet, and in challenging applications such as boats or sports grounds. Liquid waterproofing membranes are becoming increasingly important in the construction industry. Our innovative GENIOSIL® WP binders are playing a pioneering role here.

The hybrid technology is continuously advanced by WACKER: This continually opens up new applications. For example, new hybrid polymers permit adhesive formulators to produce systems with hardnesses in the high Shore D range.

Hybrids are silane-cured organic polymers that combine the typical properties of silicones (such as high elasticity) and of polyurethanes (including paintability and mechanical strength). Hybrid polymers are extremely versatile and easy and reliable to process. They are free of isocyanates and solvents, and as alpha-silane technology – which is also the curing mechanism – do not require tin catalysts for curing.