TOPCOAT CCR +

TOPCOAT CCR + consists of a TOPCOAT 177 UHCR (nickel based superalloy) HVOF sprayed intermediate coating and a chromium carbide top coating, namely TOPCOAT CCR.

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As a result the corrosion resistance and therefore the operational reliability is improved over CCR while maintaining the same wear resistance as CCR.

The CCR top coating is tribologically equivalent to an electrolytic (nickel-)chromioum coating. So surface roughness, lubrication, sliding properties, etc. are equal to (nickel-)chromium. Moreover, CCR+ is more resistant to corrosion than (nickel-)chromium, especially in sodium chloride, acidic, and alkaline environments, providing an excellent hard chrome replacement. However, hydrochloric acid environments are advised to be avoided.

TOPCOAT CCR + is also an excellent alternative in situations where the wear and corrosion resistance of WCR or WCR + is required but the rod may suffer from occasional impact damage. The chromium carbide top coating is more resistant to impact damage than the tungsten carbide top coating of WCR or WCR +. Even if the top coating is damaged by impact, the underlaying TOPCOAT 177 will protect the base material from corroding.

Typical applications for CCR + are the same as for CCR but when improved corrosion resistance is required for:

  1. Hydraulic parts, for instance piston rods
  2. Plungers
  3. Components for the automotive industry
  4. Wear resistant seal surfaces
  5. Wear resistant sliding bearings

TOPCOAT CCR +

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HVOF Spraying

The coatings sprayed with HVOF are characterized by a low porosity and a high bonding strength.

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