Alfiflon 590

…for reduced friction on anodised aluminium

Alfiflon 590 for improving frictional properties

Hard-anodised aluminium components are frequently implemented as transmission parts, connectors, hinges, sunroof components, etc., whose surfaces are exposed to friction. But friction causes deterioration which can lead to the component wearing out prematurely. To reduce frictional resistance, the surfaces are consequently often post-treated with special sprays. On complex or large components this measure may, however, be quite difficult as well as costly. In such a case, it is worthwhile looking at a simpler post-treatment method – namely immersion in an Alfiflon 590 solution.

Comparison of frictional behaviour on anodised surfaces

Abrasion without Alfiflon 590

Abrasion after 100 strokes (back and forth) using sandpaper

Abrasion with Alfiflon 590

Abrasion after 900 strokes (back and forth) using sandpaper

Advantages:

Clean dry lubrication based on PTFE (polytetrafluorethylene) particles

Considerable reduction of frictional resistance on anodised aluminium surfaces

Reduction of wear on components thanks to improved anti-friction properties

Good adhesion of the PTFE balls on the anodised aluminium substrate

For hard-anodised and anodised surfaces, can create a visible protective film

High temperature resistance – is also used for coating frying pans

Small surface imperfections are filled by the PTFE particles

Application by simple dipping process + drying at ambient temperature up to 120°C

Bath concentration is maintained via measuring the solids content and the pH value


Typical application parameters for Alfinox 590 post-treatment


Concentration

Contact time

Temperature

pH level

Drying

10 - 15 g/l Alfiflon 590

10 – 15 minutes

55 -65 °C

7.5  –  8.5

Ambient temperature - 120°C

Measurement of sliding friction (force-path diagram)

Blue curve:  anodised only
Green/red curve:  anodised and post-treated with Alfiflon 590 (dual probe)