Originally Posted by
VIP3R 237
Nitride is harder as it’s a chemical surface conversion, however cerakote is one of the best at corrosion resistance and you have the option of colors.
Cerakote over Nitride is a great option, but you have to sandblast the surface in order for the cerakote to adhere.
If your desire is to put a color over the surface treatment, wouldn't manganese phosphating (parkerizining) be a better solution?
Generally I think most spray-on products state this in some form or another, this is from Norrell's Moly Resin:
Moly Resin will adhere to all properly prepared metal surfaces including aluminum, stainless steel, titanium, copper, silver solder, and Parkerizing....the original Moly Resin coating was initially developed in 1980 for aluminum AR-15/M-16 receivers and stainless steel sound suppressors.
Answer to a FAQ: Moly Resin is made to be applied directly to fresh clean blasted slightly textured metal, over Parkerizing or other surfaces that are not polished or slick.
Use fine grit sized media to remove existing finish to get to fresh clean metal or place over degreased/cleaned Parkerizing. 40 psi for aluminum and 60-80 for steel.
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