Better protection for your maritime cranes, and your business.

90% of hydraulic cylinder failure is a result of inferior piston coatings. But with Griekspoor, you’re protected. TOPCOAT are the highest quality coatings available — maximizing the safety and lifespan of your equipment, even in the world’s most challenging conditions.

We have developed a wide range of coating solutions to help you upgrade your systems and to safeguard your machinery. Wherever the project, even in the most extreme environments, you’re protected.

Griekspoor coatings (TOPCOAT) are engineered to deliver constant, robust and low-maintenance protection for your hydraulic piston coatings. Our thermal coatings exceed all industry standards and are engineered to keep you up and running in the most demanding operating environments on earth.

TOPCOAT delivers:

  • High corrosion- and wear resistance
  • Minimum wear of seals and scrapers
  • High impact resistant
  • Free of chromium 6
  • External damage reparable by welding
  • No special sealing requirements necessary
  • Conform NBD10300 (Dutch Ministry of Infrastructure and Water Management)

Quality
is our family business.

As an industry leader metallic surface finishing, our way of working rests on three pillars: Development, application and testing.

Over the past 50 years, this way of working has allowed us to become the experts in hydraulic cylinder coatings. When you choose Griekspoor Thermal Coatings, you’re not only safeguarding your machinery, you’re protecting your bottom line.

Ask our professionals

Next generation protection.

In our mission to meet the needs of the maritime crane industry, we use HP-HVOF (High Pressure High Velocity Oxygen Fuel) and Plasma Spraying technology to offer a higher level of protection for the exceptionally demanding conditions of today's industry.

TOPCOAT 107 and 107+, Griekspoor’s economical hexavalent chrome free alternatives to nickel chrome plating, show groundbreaking results when testing on corrosion, wear and deformation resistance. Testing in our Extreme Lab and in the field have shown that a HP-HVOF-coated surface has significantly better properties in the tribological system than the previous standards: starting with the high surface hardness and the dense layer structure, through the high wear resistance and durability to a low porosity of less than one percent.

Tested to be the strongest. Confirmed and proven

Griekspoor and Freudenberg, in partnership, have conducted two full years of testing to further improve our coatings, extend lifetime and insure minimum roughness change over time. The laboratory process began with rod coatings, finished to varying roughnesses, and resulted in no detectable wear or damage as a result of worst-case situations. And havingtravelled over 5.000kms, over all kinds of Freudenberg seals the roughness values of rod coating were unaffected throughout the entire duration of the test.

Learn more about the worst case situation test

What’s your
challenge?

Together, let’s create a plan to guarantee you the best protection possible.

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Addition by subtraction

Long before the environmental ban on Chromium-6, Griekspoor was working on a
replacement. That research paid off. Our material scientists developed a Chromium-6-free alloy compound and coating process that not only meets industry standards for protection — it exceeds them. Future proof your equipment with Griekspoor Thermal Coatings. Better protection for your business and the planet.

Most used coatings in dredging industry

product
Material
Technique
Chemicals
Corrosion
Wear
Name
Email
Phone
Country
Last Update
Status
Action
TOPCOAT
Plasma
Chemicals
Corrosion
++
Wear
++
Bond layer
NiCr alloy
100µm (900µm)
Top layer
Al2O3/TiO2
200µm (800µm)
Price
100%

Go to option for hard chrome replacement, also applicable in marine environment at or above sea level. The coating consists of a plasma-sprayed nickel-chrome adhesive layer with a minimum thickness of 100μm and an aluminium oxide/titanium oxide ceramic top layer.

Free of chromium 6

TOPCOAT ULTRA
Plasma
Chemicals
++
Corrosion
++
Wear
++½
Bond layer
NiCr alloy
100µm (900µm)
Top layer
Cr2O3
200µm (600µm)
Price
135%

Added chemical resistance when replacing hard chrome plating with Topcoat Ultra. The coating is tribologically similar to the standard TOPCOAT®. The colour is dark grey/green.

Free of chromium 6

TOPCOAT CCR+
HVOF
Chemicals
+++
Corrosion
+++
Wear
+++
Bond layer
TOPCOAT® 177
150µm (3000µm)
Top layer
Cr3C2
150µm (250µm)
Price
175%

Most used for big and heavy piston rods. TOPCOAT® CCR+ consists of a TOPCOAT® 177 UHCR (nickel based superalloy) HVOF sprayed intermediate coating and a chromium carbide top coating, namely TOPCOAT® CCR.

Free of chromium 6

TOPCOAT 107+
HVOF
Chemicals
+++½
Corrosion
+++½
Wear
+++
Bond layer
TOPCOAT® 177
125µm (3000µm)
Top layer
TOPCOAT® 177/WC
125µm (3000µm)
Price
140%

one ‘size’ (coating) fits all, impact resistant. Both bond and top coatings are a Griekspoor, in house development, developed in cooperation with Dutch top corrosions experts.

Free of chromium 6

Discover all coatings

Get in contact

and get to know how we increase productivity and environmental sustainability of today’s dredging industry.

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