PPUK Foundry

Coatings

Producing all currently specified coatings including Ceramic Chrome plating, Plasma and High Velocity Oxygen Fuel (HVOF) sprayed coatings, PPUK supports the comprehensive and demanding range of engine sizes including all current 2 stroke and 4 stroke diesel engines. If you need any assistance in finding the right product for your application, please contact us

C1 - Nickel Graphite

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Nickel Graphite 

Coating Description
This coating is applied on other coatings to help them bed-in. Nickel graphite proves useful when used on plasma sprayed coatings.  

General Information
Application:     Universal
Performance:   Bed-in Coating
Thickness:        0.050 – 0.075mm

C2 - Plasma Sprayed
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C2 Plasma Sprayed 

Coating Description
A thin layer of copper is applied on the running surface of piston rings to help them bed-in during their first few hours in operation. Copper running–layers can be applied directly onto base material or on other coatings. This coating is very thin and only survives until full load is applied to the engine.

General Information
Application     Universal
Performance   Bed-in Coating
Thickness        0.050 – 0.075 mm

C4 - Hard Chrome

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Hard Chrome 

Coating Description
Hard wearing coating suitable for piston rings application.

General Information
Application     2 and 4 stroke engines
Performance   Wear Resistance
Thickness        0.18 – 0.60mm
Hardness         800 – 1000Hv0.1

C5 - RIAS
Photo-Micrographs

Rias image 

Coating Description

The C5 coating consists of two sprayed layers the first is Molybdenum and the second is Nickel Graphite. This coating is commercially referred to as RIAS.

General Information
Application     4 stroke engines
Performance   Running-in/wear resistance
Thickness        Mol (0.050 – 0.075mm) NG (0.050 – 0.075mm)

C6 - Aluminium Bronze
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Aluminum Bronze 

Coating Description

This coating is applied on its own or in combination with other coatings. It is used as a running-in coating.

General Information
Application     4 stroke engines
Performance   Bed-in Coating
Thickness        0.10 – 0.30 mm
Hardness         140 HV0.2

C7 - Molybdenum

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Molybdenum 

Coating Description

This hard coating is usually Plasma sprayed, used for its wear resistance and anti-scuffing properties.

General Information
Application     4 stroke top rings
Performance   Wear resistance/Anti-scuffing
Thickness        Up to 0.5mm
Hardness         300 – 500 Hv0.2

C10 - Ceramic Chrome
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Ceramic Chrome 

Coating Description

Ceramic Chrome is a special type of coating consisting of a mix of hard chrome filled with non-metallic ceramic particles to reduce friction between rings and liners, minimize wear and extend ring’s life

Ceramic Chrome enjoys superior characteristics over conventional hard chrome such as low coefficient of friction, good thermal stability, good wear resistance and better scuffing resistance.

General Information
Application     2 & 4 stroke engines
Performance   Wear Resistance
Thickness         0.18 – 0.60 mm
Hardness         850 – 1010Hv0.1

C11 - HVOF Sprayed Coatings
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HVOF sprayed coatings 

Coating Description

HVOF sprayed coatings are used for their enhanced tribological and mechanical properties, they offer good corrosion and wear resistance for piston rings. A variety of coating combination can be produced using this process.

General Information
Application     Top piston rings
Performance   Wear Resistance
Thickness         Up to 0.60mm