Stop rust

Protect tanks and confined spaces

For hard-to-reach areas, nC Corrosion Passivator Fluid has been developed. Fluid can be applied by floating (float coat) in the tanks or by spraying directly onto the steel surface in ballast tanks, peaks, or double bottoms eliminating the need for sandblasting or chipping.

Long-term protection of tanks, peaks and voids

Cost-efficient and time-saving – Float coat

  • Specially developed for ballast tanks, holds, and peaks

  • For both dry and damp surfaces

  • Free of VOC’s, solvents, and heavy metals.

  • Fast application by spraying or floating

  • Protection against rust for up to 15 years

Receive a price estimate within 24 hours for your project ⇢

Application by spraying or floating


Step 1: Preparation of the tanks

Remove any loose rust, paint, or mud present in the tank. The surface can be either dry or damp, and there is no requirement for heating or drying. Due to the product’s direct-to-rust application, it saves a significant amount of time and money, allowing the ship to return to service quickly.


Step 2: Floating – Distribute the Fluid (Float Coat) over the tank

For an optimal distribution of the tanks, evenly apply the Corrosion Passivator – Fluid (Float Coat) between the frames at the bottom of the tanks, peaks, or double-bottoms. The consumption is 1 liter per m3 during floating. When spraying, 1 liter can cover 5 m2.


Step 3: Floating – Filling the tank with water

Fluid (Float Coat) floats on water. By filling the tank, the Fluid adheres chemically to the metal surface. Both fresh and salt water can can be used for the floating process. The filling rate should not exceed 20 cm per minute. Fill the tank to the maximum level so that the entire tank top is reached. Can’t reach the tank top? Corrosion Passivator Fluid can also be applied by spray.


Step 4: Floating – Emptying the tank

When emptying the tank: ensure that the water level does not drop faster than 20 cm per minute. Ensure that the final segment of discharged water is collected and appropriately disposed of according to applicable regulations.


Step 5: Final inspection of the tank

After the floating process, the entire metal surface is covered with Fluid (Float Coat). The color of the metal will change to anthracite, what makes the inspection of the tanks simple. The surface retains an oily residue that disappears over time by retraction and evaporation.

Spraying instead of floating?

nC Corrosion Passivator Fluid (Float Coat) can be applied directly-over-rust by floating or spraying. When spraying, 1 liter can cover 5 m2. The treated surface does not need to be painted over and provides protection for up to 15 years.

Watch the Corrosion Passivator application video for the float coat solution ⇢

Distributors of nC Corrosion Passivator Float Coat

Vidol Marine


Vidol B.V.
Goirkekanaaldijk 28
5046 AT Tilburg, NL
+31 (0)88 743 55 00

Point of Sale | Inland Shipping

Slurink Bunkerstations
Europakade 1
6916 BG Tolkamer, NL
+31 (0)316 54 15 74

Point of Sale | Inland Shipping

Slurink Bunkerstations
Merwedestraat 48S
3313 CS Dordrecht, NL
+31 (0)78 613 31 77

Point of Sale | Inland Shipping

Slurink Bunkerstations
Zuider IJdijk 100 A
1095 KN Amsterdam, NL
+31 (0)20 694 11 37

Landtmeters Antwerpen

Point of Sale | Inland Shipping

Landtmeters Naval Stores
Vosseschijnstraat 140 /
Haven 140, 2030 Antwerpen, BE
+32 (0)3 233 31 31

Muehlhan B.V.


Muehlhan Netherlands
James Wattweg 26
3133 Kk Vlaardingen, NL
+31 (0)10 426 49 60

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