Evonik Adds TEGO Humectant 7005 to its Additives Portfolio

Date: 01/06/2021

Evonik has supplemented its additives portfolio with TEGO Humectant 7005, which combines effectiveness with low impact on coatings properties.

TEGO® Humectant 7005 is the new additive by Evonik for binder-free pigment pastes that combines effectiveness and low impact on coatings. It has a low influence on paste properties such as colour strength and viscosity, while at the same time it possesses also low VOC content, making it particularly suitable for applications on architectural and industrial coatings.

As the short drying time of binder-free pigment pastes is the main challenge in the laborious and difficult process of coatings formulation, the addition of a humectant allows to extend the so-called “open time” until drying. Yet, it usually affects the properties of the paints, as it reduces for example water resistance. TEGO Humectant 7005 not only is effective against drying pigments concentrates but also maintains a low influence on water resistance and other properties.

"Keeping the balance here is an important task during development. For the formulator, it is important that the humectant maintains the paste properties, such as color strength, stability, compatibility or viscosity, and shows little influence on the coating properties," says Frank Kleinsteinberg, head of pigment concentrates application technology.

The Coating Additives business line at Evonik has extensively and successfully tested TEGO Humectant 7005 and has now launched it on the market worldwide, further expanding its portfolio. Thanks to its low VOC and SVOC content, which is less than 0.1%, it can be used without restriction in formulations that comply with current VOC regulations in Europe and USA.