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  1. #1
    Full Member bubblebob's Avatar
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    Default NPA evaporation rate

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    Hey

    folks,

    I had ordered some NPA some time ago and only used it maybe 5 times. However, I just found that bottle

    in my bathroom closet and found it to be almost empty! Could it be that this stuff evaporates out of the closed

    bottle? Maybe the cap doesn't really close this stuff air-tight??? Anyone experienced something similar?

  2. #2
    PheroWizard oscar's Avatar
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    Quote Originally Posted by bubblebob View Post
    Hey

    folks,

    I had ordered some NPA some time ago and only used it maybe 5 times. However, I just found that bottle

    in my bathroom closet and found it to be almost empty! Could it be that this stuff evaporates out of the closed

    bottle? Maybe the cap doesn't really close this stuff air-tight??? Anyone experienced something

    similar?
    bubblebob,

    I'm going to guess that either somebody messed with your NPA, or that the

    cap wasn't screwed on tightly, or that the reducer cap (dropper thingy) had been dislodged or discarded, because

    those are some of the most reliable bottles that I've ever come across in my years of phero use.

    The last

    time that I actually bought any NPA was in

    early 2004. I remember it was right when NPA switched from cobalt blue to the current amber colored bottle.
    Bruce

    was running his "Whacky Wednesday" specials, and I ended up with 5 or 6 bottles of the stuff.
    I just checked and

    I'm down to 1 1/2 bottles at this point, and both the unopened bottle and the partially used one seem to have

    exactly the amount in them that I was expecting to see.

    Additionally, I've recycled quite a few of those

    bottles, carrying mixtures in pockets and knapsacks over the years, and I've never once seen any signs of leakage

    or evaporation from them.

    I would be willing to bet that the bottle itself wasn't at fault.

    Oscar


  3. #3
    Full Member bubblebob's Avatar
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    I indeed removed the

    dropper-thingy, because I measure my dabs without it... And it kind of goes on my nerves to remove and install that

    thingy everytime I use NPA. Maybe I should just use another bottle or change to using drops instead of

    dabs...

    bb

  4. #4
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    I just bought NPA.. What

    "dabber" thing are u referring to?? when i open it.. I see a little hole, and an arrow.. the cap has a pointy thing

    in the middle.. is that used to calculate "dab" cuz i cant seem to get any from it.. i just kinda put my finger on

    top of the bottle and tilt it to get some on my finger... any advice??

  5. #5
    Phero Enthusiast
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    yeah bro, oscar is right, my

    npa doesn't evaporate by itself either

    i still have mine sitting in my cabinet...haven't used it much since i

    discovered PI

  6. #6
    Kodachrome Forever! Gegogi's Avatar
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    My NPA seems to last forever. No

    evaporation I can see. However if the alcohol did evaporate, the androstenone would merely be more concentrated.

    Maybe your little brother or roomies been dippin' into yo stock...
    "I'm just a dirty hornytoad" -Gegogi

  7. #7
    Stranger Idtapthat's Avatar
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    hmm interesting thread. How

    about the evaporation/duration rate on human skin? How far can 1 drop go in your past experiences?

    btw.

    I dabed once directly onto my wrist, and then one split on each side of my neck today. I feel like I may be

    overdoing it. I wish I could smell the damn stuff. lol..

  8. #8
    Kodachrome Forever! Gegogi's Avatar
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    The alcohol carrier evaporates

    within 30 seconds or so. The smell of none can last for days. I can still smell it after soaping the area and

    showering. When applied to clothing it lasts for weeks.
    "I'm just a dirty hornytoad" -Gegogi

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