Spraying awlgrip with 3M full mask with organic vapor cartridge

Discussion in 'Fiberglass and Composite Boat Building' started by jimflorida109, May 19, 2009.

  1. jimflorida109
    Joined: May 2009
    Posts: 4
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    Location: fl

    jimflorida109 New Member

    Hi all,

    If I'm going to spray Awlgrip in my backyard homemade spray tent, can I use a 3M full face respirator (6000 series) with an organic vapor cartridge? I plan on spraying with full overall-style suit with hood, gloves, etc. and will change my clothes immediately after exiting.

    I know alwgrip says to use an air supply system.

    However, according to OSHA if I use an organic vapor cartridge with dust/mist, I should be ok.

    http://www.osha.gov/SLTC/isocyanates/mdi/mdi.html

    According to OSHA they tested 6001 cartridge and 501 filter and it removed 99% of the isocyanate. So before I head off and kill myself, should I be okay with BRAND new cartridges and filters which I'll discard after more than one hours worth of use?
     
  2. mydauphin
    Joined: Apr 2007
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    Location: Florida

    mydauphin Senior Member

    I don't know if I would follow my own advice...but it is far healthier and cheaper to pay someone else.
     
  3. Jimbo1490
    Joined: Jun 2005
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    Location: Orlando, FL

    Jimbo1490 Senior Member

    Yes, you will be fine with organic vapor cartridges. Search the old posts with the key word: "isocyanates" for a more detailed explanation.

    Jimbo
     
  4. grady
    Joined: Oct 2006
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    Location: Scituate, Ma

    grady Novice

    Research

    Hey, I did some extensive research and let the numbers sway me.

    The name of the tread I posted was " a breath of fresh air ".

    NI-OSHA claims that organic respirators can mitigate isocyanate's for a limited time, they were talking hundreds of hours. But since isocyanate's don't have any oder you should change they when you can smell your reducers.

    I changed mine after every other coat. (2) per session, since I used the three coat method. It does get expensive but so is awlgrip.

    I also have some pics posted in my gallery, you might like my spray tent.

    anyway I have those articles and supporting docs on isocyanate's if you want them.

    LET THERE BE GLOSS!!!!
     
  5. jimflorida109
    Joined: May 2009
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    Location: fl

    jimflorida109 New Member

    Thanks for the advice guys! I read the thread, and the documents. It's nice to see both research and practical advice come together.

    Hopefully the weather lets me get the job done.
     
  6. Jimbo1490
    Joined: Jun 2005
    Posts: 785
    Likes: 41, Points: 28, Legacy Rep: 527
    Location: Orlando, FL

    Jimbo1490 Senior Member

    I have been buying my cartridges at $24 for a box of 10 (5 changes) so even at the very conservative change interval outlined above, this is very cheap compared with buying a supplied air system ( minimum $400).

    Grady,

    Although iso's do not have a detectable odor, all the products you use with them do. Even the hardeners have detectable chemicals; they are never pure isocyanate. So the paint system has 'warning' properties that make it safe to use charcoal cartridges.

    Jimbo
     

  7. grady
    Joined: Oct 2006
    Posts: 523
    Likes: 12, Points: 28, Legacy Rep: 70
    Location: Scituate, Ma

    grady Novice

    Agreed

    Yes Jimbo, I agree. What I was trying to say was, if you can smell your product it's time to change your cartridge. And I always was able to change before that happened, even when I was pushing it a little.

    Thanks
     
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