How To Anodize Aluminum 80 Lower
Thus, it never leaves your possession/sight. · aluminum metal to anodize.
This is not a complete receiver and therefore not an.
How to anodize aluminum 80 lower. These fine anderson 80% lowers are fully anodized and made from 7075 aluminum. There are places that will anodize your lower in front of you. This finish will provide your receivers with optimal protection against abrasion, corrosion, etc.
Bead blasted and finished with a anodize coating. It costs more and is hard to find places that do it, but go to an industrial area and ask around at machine shops. The only wear surfaces with motion are in the magazine well, and the magazines will remove the anodize anyway, if the owner doesn't in order to get the magazines to drop free.
It’s cheap, so buy lots of it. Thickness, the holes will be undersized. Aluminum wire or titanium wire to hold parts;
I have been looking, but i have not been able to find out the details of how an ar15 lower receiver is anodized. Unlike a firearm receiver it is not required to be transferred through a federal firearms licensed holder (ffl). Anodizing protects an 80% lower receiver from the environment, and is incredibly durable, corrosion resistant, and it can even be an aesthetic choice.
No ffl is required to purchase this 80% lower. Anodizing your raw 80 lower. Bead blasted and finished with a anodize coating.
With the right tools (and serious safety precautions) you can anodize your raw 80 lower at home. It is harder than aluminum, so it offers a measure of protection. Don’t bother with the rit clothing dye, it doesn’t work well.
An 80% receiver is a partially completed piece of material that requires special tooling and skills to be completed and considered a firearm. It also gives the aluminum corrosion resistance. This protective oxide layer has a rougher surface that allows dyes or paints to stick to the metal.
If you make the holes 0.001 over print and they anodize to.003: 4 grams of naoh in 196 ml of tap water. Type 3 hard anodized, black;
Most importantly, an anodized surface is much, much harder than aluminum. A lower receiver does not need a hard coat. If you want something hard anodized, you need to tell them the thickness.
What does anodizing aluminum do? I don't believe there is enough movement in there to really warrant a hard anodizing (which doesn't do a ton anyway) and the raw aluminum itself will be fine in terms of corrosion resistance because it will self passivate. To anodize an 80% lower receiver you take it, and immerse it in a vat full of dangerous chemicals.
I get a chuckle out of the idea of using hard coats to improve wear under motion of aluminum parts. Aluminum parts must be surgically clean before anodizing, or the color won’t be consistent. More specifically this vat of dangerous chemicals is an acid electrolyte bath.
Anodizing aluminum creates a thin layer of aluminum oxide on the metal. Some aluminum will be deposited at the cathode but it can be removed easily. This finish will provide your receivers with optimal protection against abrasion, corrosion, etc.
Buy good anodizing dyes, they’re not expensive, either. Make a 2% (dilute) solution of sodium hydroxide (drain cleaner, naoh) if you desire an etched surface prior to anodizing. No ffl is required to purchase this 80% lower.
Bead blasting prior to anodize will give the receiver a matte finish. A raw 80% lower fresh from a cnc machine, before anodizing or cerakoting. And, if the place has done a lower before, the know the surface area and how long to leave it in the bath to get the right thickness.
Anodizing protects an 80 lower from the environment quite well. Cerro anodized 80 percent lower with optional safety engraving. Get your own 80 percent lower receiver today and put the second amendment back into your hands.
If you polish the aluminum to a mirror finish prior to anodize, the receiver will have a shiny finish and the surface would be too slick for the cerakote to stick. Both are essentially inert in this chemical. I did not paint, coat, or anodize my 80% lower.
No ffl is required to purchase this 80% lower.