Acrylic Urethane Paint / best mask & filtration

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PostPosted: Mon May 16, 2022 8:54 am
hi guys ...getting back to shooting paint (guitars, snowboards, motorcycles, etc) ...all will be 2-part catalyst based urethane sealers & paints, looking for advice on best face mask & filtration .....I will not be shooting a lot of these paints and it will be controlled environment in small booth I built .....direct links to suitable masks and filtration cartridges highly appreciated ....I do realize direct air supplied is the ultimate way to go, but that is cost prohibitive for me due to how much catalyst based paints I plan to shoot (ie: not a lot and not regularly) ....THANK YOU for the help & education !



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PostPosted: Mon May 16, 2022 12:03 pm
look for a good 3M half mask respirator, thats all i ever used. there are a lot of variables when it comes to practical filtration. no one's system is the same, i had asthma when i was younger but outgrew it in my teens and the catalyst in the paints never really bothered me. BUT the next person may get really sick, bad raspatory issues. ventilation is very important and painting with a small booth you want to make sure the air flow is away from you. NOW THE VERY MOST important thing is to make sure your mask FITS RIGHT. it doesn't matter what mask you wear if its not fitting right you might as well throw it away. you should go to a real auto body jober and talk to them and see what they have, then do some research on what they suggested. a 3M-6211 would be a good one to look at. a tip when your not useing it put it in a good gal. zip lock freezer bag.
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PostPosted: Mon May 16, 2022 5:21 pm
You really need a mask that filters particulates (i.e. dust) and organic vapours (i.e. those nasty isocyanates).

There are no isocyanates in acrylic paint but it's better to have this level of protection, even though, technically, you might get away with the next level down.
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PostPosted: Mon May 16, 2022 5:26 pm
I was in Home depot yesterday looking at their 3M masks lots of nice ones!
They had some filters rated for Organic materials But I couldn't find anything that said what the model specific the filter was.... Not all Organic filters are rated for Iso's be careful!!!!
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PostPosted: Mon May 16, 2022 5:31 pm
That's right Dennis.

Some 3M filters say they're suitable for painting, but they aren't the level that we, as auto refinishers, need.

Others appear to give a higher level of protection, including various gases, but don't actually cover the organic vapours that we can be subjected to.

It's a minefield.
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PostPosted: Mon May 16, 2022 10:12 pm
Ya the filters I was looking at claimed they were for painting and were Organic BUT yet again no Part number or what chemicals they were rated for. Definitely not helpful info on the packaging.

I went through this before with 3M masks ended up calling them and even then they were not very helpful as I recall? Maybe some one else could call? see what they find out?
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PostPosted: Tue May 17, 2022 7:58 am
Nope, 3M on the computer/email/phone pretty worthless when it comes to information on their own safety products. The product people you get are just serving mostly the wholesale needs of the industry. It's not just 3m either. I've gotten the same treatment from Norton and others in the past....
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PostPosted: Tue May 17, 2022 6:37 pm
I'll start a new thread for it, but I've made my own air fed respirator setup. I'm an occasional painter like most of us so I didn't want to pay big dollars for something that would hardly ever be used. But I also didn't want to poison myself with one big bad exposure. It only ended up costing me about $300 kiwi dollars which is about $200 US dollars.



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PostPosted: Tue May 17, 2022 7:13 pm
Hey Bill
I didn't know you were in New Zealand? Were about? I will be in Christchurch on an upcoming trip.

I have looked at the Air supply stuff and I just don't want the extra hose dragging around me when spraying. I will get a new set of respirators soon.
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PostPosted: Tue May 17, 2022 7:30 pm
Doright wrote:Hey Bill
I didn't know you were in New Zealand? Were about? I will be in Christchurch on an upcoming trip.

I have looked at the Air supply stuff and I just don't want the extra hose dragging around me when spraying. I will get a new set of respirators soon.


Darn, I'm in Wellington. 300 miles to the north. I'd have been into a drink and talking cars/paint/stuff.

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