Product description: TEGO® RHEO 8500 is a non-ionic thickener based on polyurethane Application: TEGO® RHEO 8500 is a very efficient thickener for dispersions based on polyvinyl acetate (PVAc), vinyl-ethylene-copolymers (VAE) and acrylates. TEGO® RHEO 8500 provides high viscosity in dispersions where standard thickening agents such as acrylates at low pH or polyvinyl alcohols for PVAc/VAE-dispersions fail. Its Newtonian flow behavior is beneficial in applications wherein thick layers need to be applied such as in construction tapes. Additionally, TEGO® RHEO 8500 is very useful, if the adhesive needs to be applied very precisely e. g. in dots without flowing apart. Such applications require a high viscosity that can stand high shear stress. Properties / Benefits: TEGO® RHEO 8500 - is used as thickening agent for water-based systems
- provides good long term stability
- shows Newtonian flow behavior
- is highly efficient even at lower pH-values
- improves leveling
- can be combined with other thickeners
- is solvent free
- does not contain emulsifiers
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