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Thread: Cerakote variance?

  1. #11
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    Quote Originally Posted by bp7178 View Post
    So how is it I can clean it up with acetone?
    Not sure what you mean? Clean what up? KG? Cerakote?

    Quote Originally Posted by bp7178 View Post
    So how is it I can clean it up with acetone?

    I also cannot find any reference to teflon in the mil-spec for type III.

    http://www.wbdg.org/ccb/FEDMIL/a8625.pdf
    Its pretty common knowledge. I have painted a shit load of AR uppers and lowers from DPMS to Noveske. All beaded water just like a frying pan before being blasted (I use water beading as a test for when all the Teflon sealer has been removed). All anodizing has to be sealed and every manufacturer I have called will not ship a hard coat anodized receiver WITHOUT sealer. Everyone I have talked to uses Teflon. You are the first person I ever heard claim no Teflon is used on receivers, but I have not read the actual Mil Spec for Type 3 class 2 hard coat however...

    I have coated AR parts like charging handles and 1 o'clock mounts without blasting them to see how it effected the adhesion and it definitely is not near as strong... YMMV
    Last edited by Mall_Ninja; 10-25-13 at 04:30.

  2. #12
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    Cerakote cleans up with acetone.

    I've seen uppers and lowers which had a Teflon finish. They are generally a much darker black and have a slight gloss to them. I've never heard of that being a requirement of the mil-spec though.

  3. #13
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    Quote Originally Posted by bp7178 View Post
    Cerakote cleans up with acetone.

    I've seen uppers and lowers which had a Teflon finish. They are generally a much darker black and have a slight gloss to them. I've never heard of that being a requirement of the mil-spec though.
    Are you talking about the Air Cured or Heat Cured? I've never been able to clean up heat cured Cerakote with acetone.
    I paint spaceship parts.

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    Stippled Glocks are like used underwear; previous owner makes all the difference in value.

  4. #14
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    Quote Originally Posted by bp7178 View Post
    Cerakote cleans up with acetone.
    You are talking the spray gun and what not, while still wet, but on their how to videos and if you call them on the phone they tell you to flash cure and re-blast if you make a mistake (once the coating has dried, not still "wet")

    Quote Originally Posted by bp7178 View Post
    I've seen uppers and lowers which had a Teflon finish. They are generally a much darker black and have a slight gloss to them. I've never heard of that being a requirement of the mil-spec though.
    I have yet to come across a receiver that didnt bead water after degreasing. Wether Teflon or another sealer, either way the sealer needs to be removed for proper adhesion. If the substrate is beading water, coatings are not going to stick well, if at all...

  5. #15
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    The individual applying the cerakote can also adjust the mix as well. I have one guy I take my guns to for Cerakote specifically because he'll mix it for me. Making things more matt or gloss depending on what I'm going for.

    Sent from my DROID RAZR using Tapatalk

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    Quote Originally Posted by Mall_Ninja View Post
    Aluminum Oxide for the media. KG calls for 120 mesh if I recall correctly. Pretty low pressures (I think around 40 PSI if I remember right, sorry its late), its all on their website. You basically are just roughing the surface a bit to remove the Teflon. Fresh Parkerizing is also a great substrate once degreased. Makes coating barrels and FSB's a snap. No more oil coating to keep from rusting!
    Thanks! I'll go look it up.
    Ya, doing the barrel and gasblock of a beater gun is another idea I've been contemplating. Ever try coating a barrel nut as well?

  7. #17
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    This is probably the best example you're going to get regarding your question. My rifle is cerakoted in Magpul FDE, however the complete upper and lower were cerakoted by two different companies.

    [IMG][/IMG]

    [IMG][/IMG]

    If you look closely you'll notice that there is a slight variation in the color between the upper and lower although they are the same color. Obviously the mixing ratios were slightly different between the two companies giving the lower a slight shine to it.

    All in all you can notice it in certain light conditions if you look closely, is it a big deal? No, not really. Here is one final picture of my rifle, due to the angle and sun the difference in color is hardly noticeable.

    [IMG][/IMG]
    USMC 2011-Present

  8. #18
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    Quote Originally Posted by Col_Crocs View Post
    Thanks!
    No problem...

    Quote Originally Posted by Col_Crocs View Post
    Ever try coating a barrel nut as well?
    Yep, anything Parkerized I paint. I hate oiling stuff to keep it from rusting. The bake on coatings do the same thing (actually better) for corrosion protection without the oily mess and need to constantly re-apply (oil).

    Thats another reason I choose KG over Cerakote. If you wear off or damage the coating, you can simply degrease and re-paint the area with KG. Cerakote will not stick to itself once cured, KG is quite the opposite. It sticks to itself perfectly!

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    Quote Originally Posted by HeliPilot View Post
    If you look closely you'll notice that there is a slight variation in the color between the upper and lower although they are the same color. Obviously the mixing ratios were slightly different between the two companies giving the lower a slight shine to it.
    If I had a better camera I could show you one of mine that I did myself that looks exactly the same. One receiver is slightly shinier and smoother than the other. Both done by me with the same can of KG, the difference was a couple months apart. Temperature of the substrate, air temp and air pressure all effect the surface texture. If you really want them to match right you must paint them the same day and the same exact way, same guy shooting the spray, no matter who's coatings you choose...

  10. #20
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    Have you tried to spray over Cerakote or are you going off of their training materials?



    Quote Originally Posted by Mall_Ninja View Post
    No problem...



    Yep, anything Parkerized I paint. I hate oiling stuff to keep it from rusting. The bake on coatings do the same thing (actually better) for corrosion protection without the oily mess and need to constantly re-apply (oil).

    Thats another reason I choose KG over Cerakote. If you wear off or damage the coating, you can simply degrease and re-paint the area with KG. Cerakote will not stick to itself once cured, KG is quite the opposite. It sticks to itself perfectly!

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