Tightening ISO16047

Let’s take a close look at the underhead of a flange screw after tightening (ISO16047)!

GEOMET® coating systems are known for offering very robust tribological properties under difficult tightening conditions.

In the SEM images below, you can observe the surface conditions of GEOMET®430 + PLUS® VLh Black before and after the screwing operation.

The rheological properties of GEOMET® combined with the lubricated topcoat provide perfect conditions for withstanding the extreme physical stresses caused by tightening.

Underhead surface after tightening is flat and smooth, testifying to the physical transformation of the material and reflecting the excellent tribological properties of the coating system.

Contact us if you want to know more about GEOMET® and COF properties: https://www.nofmetalcoatings.com/europe/contact/