Paint & coating of Isotropic Nd-Fe-B bonded magnets (NEOQUENCH-P)
Compression molded magnet kept in dry air in the long time does not rust, but in the moisture, high humidity atomoshpere lead to rust on the surface.
Therefore, the rust proof painting ( surface coating ) is necessary to use. Daido provides 5 kinds of coating are prepared to the usage.
The injection molded magnet is relatively hard to rust, usually used by no coating.
| Coating method | Coating thickness (micron meter) |
Corrosion resistance Time durability in humidity test (Hr) |
Application shape | ||
|---|---|---|---|---|---|
| 60℃×95%R.H. | 80℃×95%R.H. | ||||
| Resin coating | Electro-depositioning coat ( epoxy ) | 20～35 | 500 | 300 | Various shape |
| Spray coat ( epoxy ) | 15～30 | 400 | 200 | Various shape | |
| Dipping coat ( epoxy ) | 1～5 | 100 | 50 | Small part | |
| Barrel spraying coat ( epoxy ) | 3～18 | 200 | 100 | Small part | |
| Metal Plating | Ni-Plating | 10～30 | 500 | 300 | Various shape |
Please consult with sales staff about details.
New Electro-depositioning coat (N-ED)
About New Electro-depositioning coat (N-ED)
Even conventional electro-depositioning coat has well rust resistance, new electro-depositioning coat (N-ED) persues further resistance of corrosion and chemical, oil durability. Please let us propose the coating method according to your usage.
New Electro-depositioning (N-ED) coated magnet
Feature of New Electro-depositioning coat (N-ED)
| Name | Electro-depositioning | New Electro-depositioning coat (N-ED) |
|---|---|---|
| Resin basic material | Epoxy resin | Denatured speciality epoxy resin |
| Conformed RoHS | Conformed | Conformed |
| High resistance for corrosion and chemicals | B | A |
| Oil resistance | B | A |
| Temperature can be used (Only for coating) |
≦210℃ | ≦270℃ |
| Thickness of coating | 25μm | 15μm |
| Pencil hardness | ≧2H | ≧4H |
