Spraying awlgrip with 3M full mask with organic vapor cartridge

[jimflorida109]

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?

[mydauphin]

I don't know if I would follow my own advice...but it is far healthier and cheaper to pay someone else.

[Jimbo1490]

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

Jimbo

[grady]

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!!!!

[jimflorida109]

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.

[Jimbo1490]

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

[grady]

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