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Kansai Paint Marine Co.,Ltd.

Epoxy resin paint for ballast tank maintainance Nu FORTE DX Because surface preparation on the old paint film is not necessary, it's possible to save money on maintainance.

Tar-epoxy paint had been applied on ballast tank (2/3 of coating ship area) , because of its costs and the anticorrosive property.
But over 10 years after new-building, it costs huge money and man-hour, and causes headwind in hull property maintenance management and prolongation of life.

NuFORTE DX is an epoxy paint developed by NKM advanced technology for obtaining long term adhesion property with high pressure water washing on damaged tar-epoxy film.
As eco-friendly coating, NuFORTE DX contributes to the price improvement of ships, and it realized maintenance cost saving, light color ballast tank and high solid paint.

Kansai Paint Marine Co.,Ltd.
6 months after application

Characteristic


Characteristic Item Merit
Applicable on tar-epoxy
by high pressure water washing
Blasting, grit removal and cleaning
is not necessary.
* Save maintenance cost
* Save maintenance work
* Environment improvement
Tar-free
* Non-tar type
* Light color in tanks
* Environment improvement
* Safety for inspector
High solid
* Low VOC
* Low paint consumption
* Environment improvement
* Saving cost


Color


Grey / Red oxide
Kansai Paint Marine Co.,Ltd.

Painting specification




Adhesion of NuFORTE DX


Tar-epoxy
film history
Exposure condition Exposed 30days+ 40℃seawater Immersion 90 days
Manufacturer NKM Others
Tar type Coal digested pitch Medium tar pitch Coal digested pitch
Resin type Amine cure
epoxy resin
Isocyanate cure
epoxy resin
Amine cure
epoxy resin
Amine cure
epoxy resin
Maintenance coatings NuFORTE DX
NKM Tar-epoxy × × × ×
NKM Modified epoxy × × × ×
Others Modified epoxy × × × ×

Ballast tank tar-epoxy paint film has been damaged by exposure during new building process, and immersion in seawater for a long period.
Weak layer has been formed on the tar-epoxy surface by exposure
in such corrosive conditions. (refer to SEM photo)

If ordinary epoxy paint is applied on such a damaged tar-epoxy paint film with high pressure washing preparation, adhesion problem or peeling would be occurred after seawater immersion.

In NuFORTE case, even it is overcoated on a damaged tar-epoxy film, tar-epoxy weak layer will be dissolved and spread into NuFORTE film during drying and curing process.
In this case, there is no weak layer in the boundary between old and new films.
Long term stability can be obtained after seawater immersion.

NKM Coatings

Cutting view of NuFORTE DX film


Cutting view of NuFORTE DX film

Initial  tar-epoxy film Kansai Paint Marine Co.,Ltd. Damaged film by exposure or seawater immersion Dry and cure process Ordinary epoxy paint

SEM of tar-epoxy film surface
NuFORTE DX



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