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25PCS 2X1X1/2 neo magnets wind turbine motor epoxy/hole
Grade N42, used for building efficient wind generators in Hugh Piggott's "How to Build Wind Turbine" book
For wind generator magnets, coating and performance are the most important things to consider, we recommend Epoxy+Nickel+Copper+Nickel 4-layer coating for long term durability under all weather conditions, we don't recommend Epoxy single layer coating, please read details below. To have better performance for your wind generator, the higher grade the magnets, the better; N42 grade offers much better performance than N35. we recommend at least N42 or higher grade for high performance.
Epoxy + Nickel + Copper + Nickel 4-layer coating vs. Epoxy single layer coating
Epoxy + Nickel + Copper + Nickel 4-layer coating is much more durable than Epoxy single layer coating because Epoxy single layer coating is thin and quicker to wear off and Epoxy single layer coating does not protect magnets against moisture or oxygen. Epoxy single layer coating does not protect magnets against moisture or oxygen, it only protect magnets from corrosion in salt and acidic conditions.
Epoxy + Nickel + Copper + Nickel 4-layer coating has superior Corrosion Resistance and excellent adhesion to metal surface than Nickel coating, this coating is ideal for bonding metal
Epoxy + Nickel + Copper + Nickel 4-layer coating is the most durable and most effective magnet coating.
Grade Makes a big difference !
These magnets are much stronger than N35 grades, they provide higher output and performance than lower grade for wind generators.
Much more durable than Epoxy single layer coating because Epoxy single layer coating is thin and quicker to wear off and Epoxy single layer coating does not protect magnets against moisture or oxygen.
Epoxy single layer only protects magnets from corrosion in salt and acidic conditions.
Nickel+Copper+Nickel magnet coating provides protection against moisture and oxygen but is prone to corrosion in salt and acidic conditions.
Epoxy + Nickel + Copper + Nickel 4-layer coating also has excellent adhesion to metal surface than Nickel coating, this coating is ideal for bonding metal.
In summary, Epoxy+Nickel+Copper+Nickel 4-layer coating is the best all-purpose, the most durable and most effective magnet coating.
Epoxy+Nickel+Copper+Nickel 4-layer coating is better than just Nickel+Copper+Nickel 3-layer coating and Epoxy single layer coating.
