Is parkerizing the same as bluing?
Parkerizing is a oxide finish that is porous and holds oil. It was an inexpensive finish that could be redone easily without a lot of polishing at a depot. Blueing is a hard oxide that both seals the metal and resists wear. It is more work to refinish a gun but it adds a hard shell finish.
How do you make manganese phosphate?
The manganese phosphate coating process includes a specific sequence that normally includes degreasing and cleaning of the metal part, a water rinse, then pickling in mineral acid. This is followed by another water rinse, activation, manganese phosphate, water rinse and lubricating with special oils.
What is parkerizing treatment?
Parkerizing is a method of protecting a steel surface from corrosion and increasing its resistance to wear through the application of a chemical phosphate conversion coating.
What color is manganese phosphate?
Manganese phosphate coatings, unlike zinc phosphate coatings, also provide continued wear protection after initial break-in. The coating is formed via immersion in a dilute phosphoric acid solution and is dark grey in appearance.
Can you blue over parkerizing?
“You can finish a parkerized finished handgun with a polished blue. However, the cost is much more expensive, and the polished blue finish will show all finger prints and scratches very easily.
Will a parkerized gun rust?
Without the oil or grease, a Parkerized finish will rust faster than more common (and advanced) finishes.
What is the difference between black oxide and black phosphate?
Phosphate runs at roughly 180 degrees F while black oxide runs at 290F. Both processes have similar pre-treatment steps. Black oxide gives a deep black color while phosphate coatings are grayish. Black oxide is more abrasion resistant than phosphate.
What is the difference between zinc phosphate and manganese phosphate?
A short but simplistic answer is that zinc phosphate is a pretreatment for components that will be painted or powder coated, and manganese phosphate is an oil-retentive final coating normally used for lubricated components such as internal engine parts.
Is black nitride better than Parkerized?
Phosphate is just basic parkerizing and will provide minimum corrosion resistance. It’s also porous and will make cleaning more difficult. Nitride is even harder and more corrosion resistant than chrome lining and produces sharper rifling which increase accuracy.
How do you make zinc phosphate solution?
A process for producing zinc phosphate comprising treating zinc oxide with phosphoric acid in an aqueous medium at a temperature ranging from 70° to 80° C. in the presence of metallic zinc taken in an amount of from 1 to 10% by weight of zinc oxide, followed by separation of the resulting residue of zinc phosphate.
What is a black phosphate coating?
Black phosphate is a common surface preparation for further coating or painting as it is porous with excellent adhesion. Application: Standard finish for drywall screws, however this finish is most commonly used as a pretreatment for further plating. Appearance: Dull grayish black.
Can you Parkerize over rust?
Parkerizing was originally developed to be an undercoat for paint. When parkerized metal rusts, it’s under the coating and like almost all gun finishes, once the finish is compromised there’s usually nothing that can be done short of a strip and refinish.
How do I mix Parkerizing solution?
Parkerizing Solution is a concentrate and should be mixed with 4 parts water. Parkerizing requires a heated stainless steel tank.
What is the difference between black dip and Parkerizing solution?
Black Dip should be used as is without diluting and can be used in any container other than stainless steel. Parkerizing Solution is a concentrate and should be mixed with 4 parts water. Parkerizing requires a heated stainless steel tank.
Why not just buy a premade Parkerizing solution?
It works great as either the base for a top finish, such as Molyresin or as a finish all by itself. You may be wondering “why not just buy a premade formula such as the great parkerizing solution from Brownell’s” – the short answer is because tinkering can be fun and more rewarding. I like to experiment and try different things.
What can I use to heat up my Parkerizing tank?
Just to show how simple your parkerizing tank can be, I did a batch of parts in a small stainless steel pot; the sort of thing you could find at your grocery store. If you’re only parkerizing small parts, you can use a small stainless steel pot for your tank. Much like the tank, you can use almost any kind of heat source.