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A materials coating specialist is required to advise on the use of appropriate ceramic or other coatings to be applied to neodymium magnets and magnetite (irregular sized) rocks (3-8mm).
Coating is to prevent rust of magnetite and leaching of surface material (Iron, Nickel, Ag) from magnetite and magnets.
Application is for use in drinking water products and must withstand immersion for 3-5 years and be non-leaching.
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