SheraTop System

The best protection against corrosion is a duplex system.
SheraTop ^® is SHERART’s duplex system and is tailored to customer requirements.

What is SheraTop ^® ?

With the SheraTop ^® system, sherardized products are provided with a top layer such as powder coating, PTFE, organic coating, etc.

What makes SheraTop ^® special?

The properties of the sherardised zinc layer such as roughness, hardness and adhesion ensure the optimal base coat of the SheraTop ^® -system.

The microcrystalline surface ensures the anchored bond with the chosen top layer.

This combination makes it suitable for a wide range of applications, such as extending life, decorative or functional properties.

Why duplex with a sherardized zinc coating?

Topcoats adhere excellently to a sherardised substrate without pre-treatment. As a zinc-iron alloy, the sherardised basecoat is inextricably linked to the base material. As a result, the zinc layer actively protects the base material.

This cathodic protection duration can be influenced by the adjustability of the layer thickness. In fact, the interconnection creates a synergistic effect in the protection of your product (“Lackunterwanderung”).

Duplex, but no SheraTop ^® ?

The customer can apply the top layer himself, without pre-treatment, by means of painting, spraying, dip-spinning, electrostatic or cataphoresis techniques. A top coat can even be applied after assembly.

SheraTop ^® in a maritime environment?

In extremely corrosive environments, such as C5-M according to ISO 12944, tuned duplex systems based on sherardization are particularly suitable.

From SheraTop ^® – PTFE coatings have been shown to have corrosion resistance up to 10,000 hours of salt spray test.