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Yellow stains

Discussion in 'Skulls and Skeletons' started by skullclnr, Mar 10, 2010.

  1. Mar 10, 2010 #1
    skullclnr

    skullclnr Active Member

    1,852
    17
    Colorado
    k, I want to see everyones opinion on this one. Some of my skulls have these yellow stains around some of the sutures and cracks, most if the time they are on the nose or around the snout, or the brain hole. I know its not grease and they are not from too hot of water or boiling. I know everyone else must get these, anyone figured out why or how to solve? There are some heads that just wont whiten in these spots, unless you rattle can them.
     
  3. Mar 10, 2010 #2
    bulldog4949

    bulldog4949 "Mounting your Memories"

    5,472
    4
    TEXAS
    Yea I get these on a few deer. Antelope are the worst. Damn they are greasy suckers. Along the snout as well.

    Really only thing you can do is degrease again...and whiten.....if that don't break them up...touch up time. But lightly.
     

  5. Mar 10, 2010 #3
    roundman81

    roundman81 New Member

    391
    1
    WI
    So far the only yellow stain I have had is on the antler. I assumed it is from grease that is in the steam.
     
  6. Mar 10, 2010 #4
    frogtoes

    frogtoes New Member

    30
    0
    Texas
    I am having the same problem with 2 heads now...I have put the first one back into the degreasing pot to see if that helps any. I think I'm going to leave it in there another week. If this helps, I'll let you know.
     
  7. Mar 10, 2010 #5
    AH7

    AH7 New Member

    1,281
    3
    Patience. The grease will come out. Make sure that there isn't any thin flesh over those parts too. Sometimes the thing film (technically called the periosteum) adheres around the noses and can lock in the grease. Y'all are experienced enough that this is almost certainly NOT what is going on (I'm sure you have removed everything), but for the newbies it is worth checking.
     
  8. Mar 10, 2010 #6
    skullclnr

    skullclnr Active Member

    1,852
    17
    Colorado
    Thansk all, but like I said its not grease, is like the bone was burned, but my temps are NEVER over 140 degrees. I have a button buck that I bugged, degreased for three weeks and it still has the areas, the thing is very young and thin so I know its not grease, its all gone. I am POSITIVE this is not grease, just dont know why it happens or what it really is.
     
  9. Mar 10, 2010 #7
    Bone Heads

    Bone Heads Kristen M. Armenia

    277
    1
    Gasport, NY
    I spent months on a button buck and a juvenille bear with similar problems - yellow bone after whitening that was not grease. I quit on the button buck and the customer loved it anyway (16 year old kids first). The bear took an extended soak in STRONG ammonia for approx. 2 months - I just put it in there and forgot about it. After a round in dawn degrease, and a 35% peroxide whitening it is now looking good. I don't know for sure what it is about young animals, but maybe it has to do with immature bone growth/formation of the skull (kind of like human babies and their soft spot) maybe that area of bone isn't completely calcified yet.