N38 neodymium block magnets are plated in order to resist corrosion and deliver continued magnetic performance over time. Neodymium magnets are the most powerful magnets available and used in a wide variety of applications ranging from industrial, to scientific, to consumer. BuyMagnets.com stocks a broad variety of strengths and sizes of N38 plated neodymium block magnets so that you can find the perfect magnet to meet your needs. If you have any questions, please do not hesitate to reach out to us for assistance.