These strong neodymium disc magnets 20x5mm are plated with in dark-gray color teflon, which is the industrial class coating. The material grade varies from N35 to N52 are available. There some technical date of the 20x5mm teflon coated neodymium magnets, The cheapest price will be offered for bulk order.
Corrosion resistance: neodymium magnets with Teflon coating have better corrosion resistance
Friction resistance: with Teflon coating the neodymium magnets 20x5mm is friction resistant.
Heat resistance: neodymium magnets 20x5mm with Teflon coating has heat resistance.
+/- 0.05 mm
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