Nu FORTE DX
Nu FORTE DX is an epoxy paint developed by Kansai Paint Marine advanced technology for obtaining long term adhesion property with high pressure water washing on damaged tar-epoxy film.
As eco-friendly coating, Nu FORTE DX contributes to the price improvement of ships, and it realized maintenance cost saving, light color ballast tank and high solid paint.
Characteristic
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| 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
Painting specification
Adhesion of Nu FORTE DX
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| Tar-epoxy film history |
Exposure condition | Exposed 30days + 40°C seawater Immersion 90days | |||
|---|---|---|---|---|---|
| Manufacturer | KPM | Others | |||
| Tar type | Coal digested pitch | Medium tar pitch | Coal digested pitch |
||
| Resin type | Amine cured epoxy resin |
lsocyanate cured epoxy |
Amine cured epoxy resin |
Amine cured epoxy resin |
|
| Maintenance coatings |
Nu FORTE DX | ○ | ○ | ○ | ○ |
| KPM Tar-epoxy |
× | × | × | × | |
| KPM Modified epoxy | × | × | × | × | |
| Other Modified epoxy | × | × | × | × | |
Record
Mechanism of adhesion
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.
SEM of tar-epoxy film surface
In Nu FORTE case, even it is overcoated on a damaged tar-epoxy film, tar-epoxy weak layer will be dissolved and spread into Nu FORTE 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.
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