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G'day Guys,
One of the proplems so far about living downunder is I can't source the factory made parkerizing solutions, well I can't find a retailer so far.
Does anyone have a good receipe for a homemade black parkerizing solution. A tried and tested one would be good. I have searched the net, come across a few receipe's but most links are dead to the poster so I can't ask any questions to try and convert the products to products sold here.
thanks,
Myles
no such thing as {black phosphate} do a search in your area for black oxide coatings,,youll find lots of companies, manganese phosphate or Zinc phosphate is what your looking for.
dark grey is manganese, light grey is Zinc.
most the chems made for phosphate coatings come from China, Chile ect..
took me 5 mins, to find this one,,, Metal Finishing
the best tool is right at your finger tips,,,use it.,...youll find everything you need.
Thanks Chuck,
Sorry about the incorrect terminologies and discriptions but I can only blame that best tool at our fingers. Sometimes when a person doesn't have a clue, like myself it can be more misleading.
I can find people that will do it for me here, generally dearer than hot blueing. I'm after a solution I can make up myself and use on small projects as I believe you can get just as good finish.
Myles
most black oxide suppliers also offer phospates as well.
i dont know of any real stove top type mixes that really work very well...tried a few..then found that to do it right always works best...
Will Brownell's not export to Austrailia? Or is is the government that won't let in dangerous goods? I know we can get it here in Canada, but it's expensive.
I think it is the transportation problems of these style of chemicals making the factory mixed solutions not profitable.
Myles
Send them an Email and find out what the poop is...World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools - BROWNELLS
not sure, but id bet its the hazmat issue
I once accidentally achieved a grey "parkerized" look on a thread-cutting die that I put into a cup of "rust remover" (which is actually weak phosphoric acid) and forgetting it for several days.
Zinc phosphate is available as a primer for painting on brass. Manganese phosphate is also used as primer for brass/steel.
Most of the materials we need are available by the bucketful as industrial products for painters, furniture restorers, car body repairers, artists etc. A lot of chemicals may even be available from a dispensing chemist, if he knows you as a responsible person.
Why pay someone a high price just to mix these together and sell it to you in a tiny little bottle as "specially for guns". The mix may be, the raw materials are not. Find out the ingredients you need, and try the sources for the above-named activities. Experiment with old bits of iron and steel until you are happy with the results. Just don't forget the items in the bucket - like I did! You should not need to import anything.
Patrick
Have a look at this, maybe what your looking for.
DIY parkerizing solution - Nevada Shooters
that might work in Germany...but the EPA has a tight grip on who can carry, and sell such things here in the ol USA...trust me,...iv looked for a place that will sell me the things to make my own... no such luck...i have access to some of the nasty things used in black oxide, and make my own blue salts, only a select few companies can sell and carry Zinc, and Manganese phosphate..Quote:
Originally Posted by Patrick Chadwick
theres a little more to it then just adding acid , water, and manganese.. you have to have the PH balance right to get the right mix, and color... iv been coating steel for years....and have done my homework.. the company that i buy from, has a chemist that helps me with mix and color issue..man is a wiz at this...
for a small job, you can likely contact eastwoods car restoration supply company, and get a small amount of manganese phosphate for less then 50.00
I dabbled in this a few years back when my first supplier went out of business, and gave up. I did find that the commercial solutions use some catalysts, notably nickel acetate, which is expensive and a bit hard to find. You wont' get good color and fine grain without the catalysts, which aren't mentioned in most of the references. There are periodic shortages of GOOD parkerizing solution here when the military goes on a buying binge - the chemical suppliers cut back on the nickel acetate, and the chemicals won't produce good finishes. If you can obtain commercial stuff, it is worth the hassle. We use Dulite - don't know if they export.
OlManDow
:clap: You need a bath of : Phosphoric acid..........4.2g
Manganese dioxide.......2.5g
Distilled water...........1 litre
Cast iron fileings can be used instead of the manganese, boil for half to one and a half hours, must be kept boiling briskly. Allow to cool then rinse residue off, should be a slightly rough dark finish.
To parkerise use Phophoric acid......25.0g
Manganese dioxide..1.5g
Distilled water......1 litre
Boil in this mix for 2 to 4 hours, rinse in cold, then boiling water, allow a few seconds for water to evaporate then dip into Linseed oil, drain and dry.
These mixes are for small parts, increase proportionately for large items, and remember, do not let the mixture boil away to more than one third, otherwise........