Du-Lite MP-330 Manganese Phosphate Liquid

Description

Du-Lite MP-330 Manganese Phosphate Liquid is used to produce a black World War II “Parkerized” finish on the steel and iron parts of rifles, pistols and machine gun mounts.

MP-330 produces a crystalline manganese phosphate coating for steel and iron surfaces with coating weights up 5000 mgs/square foot. (Will not adhere to stainless, cooper, brass, aluminum or bronze. If these metals are placed into the bath, the bath will become polluted and will have to be discarded) Du-Lite’s Kwikseal® Oil aids rapid break-in of moving parts without scoring or scuffing and provides excellent corrosion resistance from rust. MP-330 is mainly used on military equipment like M1 Garand, Colt 1911, M 1 carbine and WWII machine gun mounts and other military equipment. MP- 330 produces a dark black color on finished work and may have fine, medium or coarse crystals depending on the pretreatment used.

Equipment: The process tank and piping for use with the MP-330 solution should be of type 316 series stainless steel. When heating solution with hot water or steam, heating coil should be made of type 316 stainless steel.

WARNING: When phosphating firearms it is important to plug the barrel and receiver part of the firearm to prevent MP-330 from entering the internal parts of the firearm. If MP-330 is allowed to enter you can permanently damage the internal surfaces. Barrels can be plugged with silicone rubber plugs shaped to fit snuggly in the end of the barrel and receiver. (These silicone rubber plugs are available for an additional cost from Du-Lite Corporation)

Du-Lite ships MP-330 in heavy duty industrial 1, 5 and 55 gallon plastic containers with rubber gaskets. The 5 gallon containers have heavy duty plastic covers with locking bands.This will protect the manganese phosphate from contamination and moisture for several years.