ATCOTE™

The special fluorinated-polymer coating.

Coating general description

It’s a special fluorinated-polymer coating.
It’s black coloured due to the presence of graphite inside the formulation.
It may be used as a replacement of plugs, caps, and plastic protections utilized to avoid the contamination of threads by welding and cataphoresis coatings.

Technical advantages

Anti-seize
Integrated lubrification
Dry to touch
Barrier coating on fasteners which are to be processed through electrodeposition primers and welding operations.
Prevents weld sputter sticking to the treated area, leaves the treated surfaces untouched by the primers.
Controlled coefficient of frictio: μth = 0.12 – 0.18 (according to ISO16047)
No detachment when subjected to blowing for 5 seconds with compressed air at a pressure of 3-4 bar (>45 psi) from a distance of approximately 30 mm.

Application types

on internal or external threaded parts to avoid the contamination caused by weld sputter and accumulation of paint.
on Zn / ZnNi plated and passivated parts

Application process and environmental safety

Applied by spray method; it is Cr(VI) and heavy metal free.

During the process the parts are subjected to a maximum temperature of 250°C for the polymerization (the corrosion resistance will be reduced).
In case of uncoated parts it could be necessary to reach a temperature of 300-400°C for the pre-treatment cleaning and the surface should also be pretreated by μ-sandblasting with corundum.
In parts with complex geometry thickness variations can occur.