Tetraurea powder polyurea thickener GPU-A Pre-formed tetraurea thickener

The performance advantages of polyurea thickeners: They contain no metal elements, resulting in a longer bearing life.

However, conventional diurea thickeners tend to harden at high temperatures and have poor shear properties.

Greases prepared using GPU-A pre-thickener exhibit better temperature resistance, mechanical stability, colloidal stability, water resistance, and lubricity, comparable to the physicochemical properties of one-step tetraurea greases.

Using GPU-A pre-thickener allows for the convenient and rapid preparation of tetraurea greases of the same quality as those produced using the one-step method.

While the physicochemical properties of tetraurea and diurea greases are comparable, the former exhibits superior structural stability at high temperatures, significantly reduced hardening, and a clear advantage in thermal stability.

Further research will continue to expand the industrial applications of GPU-A pre-thickeners.