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Du-Lite Manganese & Zinc Phosphate Chemicals (Parkerizing Chemicals)

Zinc and Manganese Phosphate also called Parkerizing available in 1, 5, and 55 gal containers. Manganese Phosphate produces a black film and Zinc Phosphate will give you a light grey film. 90% of orders shipped same day rec. 5% disc your first order (new customer-only).

Manganese Phosphate Liquid, (MP-330), is used to produce a black World War II "Parkerized" finish on the steel and iron parts of rifles, pistols and machine gun mounts. Zinc Phosphate Concentrate, (ZP-440), is used to produce a light gray zinc phosphate finish on steel parts. Scroll down the page to learn more.

Du-Lite MP-330 Manganese Phosphate Liquid

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.

MP-330 Gun Parts
MP-330

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 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.

Du-Lite ZP-440 Zinc Phosphate Liquid Concentrate

ZP-440 Zinc Phosphate Liquid Concentrate is used to produce a light gray zinc phosphate finish on steel parts.

Du-Lite ships ZP-440 in heavy duty industrial 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 zinc phosphate from contamination and moisture for several years.

Zinc Phosphate

The Easy Opener

Due to new shipping regulations by the DOT, we are now required to ship our hazardous and corrosive materials in five-gallon pails with drive on covers. Some of our customers are having trouble removing these covers and have elected to purchase from us "The Easy Opener"; it removes the lid with ease. If you do not already have this device we suggest you include this with your order.

  Easy Opener