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Plastic Freak
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PostSubject: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 2:41 pm

Hi guys.

Can you please share with me some of your experiences with solving you personal dust issues.

I am not looking for the norm here, i.e. I have pretty much tried everything from lining the booth with news paper and wetting it down, using a tac cloth for the entire booth and surrounding area then installing wet paper. Vacuuming the entire area in and around the booth.
I have increased the distance of the spray area, moving further back from the fans.
The fans I use are two 8" server fans that move a crap load of air, so much that the vacuum they create can easily suck a polishing rag into them.
I am thinking of going with one fan and see where that gets me.

Thanks



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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 2:54 pm

All i can offer is that when we sprayed in a booth (1:1 stuff) the inlet was filtered.

You have two huge fans sucking out the air ... but .... if the air is dusty that gets dragged in to replace the drawn out air .... you're back to square one, you might as well not have the fans going.

looks like addressing the ambient air might be worth a shot ??
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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 3:23 pm

I agree with Colin. Most dust appears during the drying time which is why I made a purpose built drying booth.

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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 4:15 pm

Thendust mites are appearing as I spray.

I have a separate dry booth, it is a concealed drawer, one I have made that have a vynl curtain down the side and front, dust can not get in, I also wipe it out with a tac rag before I place a shell in it.
The dust appears as I am spraying, you can actually see the particals accumulate.
It is driving me nuts.
I thought it was my AB that was contaminated, so I completely disassembled it soaked it in naphtha for 24hrs, re assembled it wiped and cleaned it out then ran reducer/cleaner through it before I sprayed the clear.

I know it is the atmosphere I am working in, our house is not a "dusty" environment as houses go, we have no pets and I change the furnace filter every three months.

Short of building an incubator type booth I am at a loss.

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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 4:44 pm

Curt: I use a clear plastic "shoe box". Immediately after spraying I place the parts on a clean surface and sit the box over them. It's definitely not a cure all, but does seem to help.

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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 4:52 pm

Thanks John. I have a dedicated drawer in one of those plastic storage drawer cabinets for post spraying. The dust settling definately happen during the spraying process.

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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 5:15 pm

If you can guarantee that there's no dust entering the spray area and that the spray area is dust free then it must be another issue occuring within the booth.

Logically all there can be left is the equipment, you say this has been stripped down and cleaned withing an inch of its life so that can't be the problem.

Therefore the final remaining possibility as far as I can presume is that the spray itself is "clumping" in some way mid spray, paint/reducer/thinner can dry in the air and form a rough(dry) coat on the recipient part, this will brush off when dry, could this be the problem?

Too dry, too humid, too warm, too cold environments can produce differing intensities of the same issue.

Booth at the shop I dabbled in was at 65 degs and 30-40 humidity for cellulose and same temp but 40-50 humidity for the "new" acrylic paints of the time.

Food for thought? Hopefully some help in all my waffle above ... Hopefully you'll get sorted mate cos it sounds like it's doing your head in.
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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 5:51 pm

Curt, I'm probably on the wrong track, but maybe that thick internal insulation in the room is creating dust that's getting sucked into the booth, I think it's wrapped in plastic, but I doubt it's air tight.

Just a thought.

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PostSubject: Re: How to eliminate dust! Grrr.   Mon 28 Mar 2016, 6:33 pm

Thanks so much for all your input guys and taking the time to respond.

All good angles of thought guys. Shay the insulation thing might be a possibility although it is covered in plastic.

Maybe I just have a really dry scalp, lol.

All the clear, catalyst, and reducer were poured off In 1/4 pint tins from 5gallon buckets Saturday. I buy this stuff from a very very busy auto paint supply shop. You have to make an appointment to have paint mixed and poured, these guys work in a minimum 4hr wait time for most requests. So out of date product isn't an issue. As for mixing I mix it with measuring spoons.

I also have the same issue with Tamiya clear.

I will try one fan and see, perhaps the draw of both fans is just too much. I have a few things I will try.

Thanks again for your time spent trying to help me sort this out.

Much appreciated.

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PostSubject: Re: How to eliminate dust! Grrr.   Wed 30 Mar 2016, 1:04 am

So, I got in early this aft and headed down to the bench, the sun was coming in the basement window at just the right angle.


so I have come to the conclusion that my basement must be inhabited by a pixie colony, and they spend all day sprinkling pixie dust everywhere.


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PostSubject: Re: How to eliminate dust! Grrr.   Wed 30 Mar 2016, 1:26 am

Smoke it Curt, then get on with the building! LOL
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PostSubject: Re: How to eliminate dust! Grrr.   Wed 30 Mar 2016, 2:21 am

You think my last paint job was a bit wild, I can only imagine what they'd look like.

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PostSubject: Re: How to eliminate dust! Grrr.   Thu 31 Mar 2016, 5:06 am

Alright here's a wild and untested theory but at the point you're at, it could be worth a shot...
Get a regular bag of your every day party balloons at the dollar store. Blow one up, rub it against your clothes to create the static electricity effect and tie it down in your booth. In theory the dust should naturally be drawn to it like a moth to a flame.
Of course depending on your set up it could block your light or might be too big for your booth, the fans might counteract the effect too but I'm throwing it out there.

Disclaimer: I'm not responsible if the booth goes up in flames. Good luck!
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PostSubject: Re: How to eliminate dust! Grrr.   Thu 31 Mar 2016, 8:14 am

I'm thinking it would also attract the paint over spray Denis.

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PostSubject: Re: How to eliminate dust! Grrr.   Thu 31 Mar 2016, 1:11 pm

Good theory Denis, it could work. What about a sheet of poly, that stuff is pretty charged.

Thanks for the thought and suggestion.

I have also thought of a retractable hood, like the ones on the old baby carriages. It would arch out from the wall (the fulcrum would be on the bench)and cover the booth and me during painting. But it would be huge, more then 5ft tall and 3ft wide at the base. I would need to fine 12ft flexable rod to hold the poly sheeting.

Given the perimieter of my area is pretty much where I will eventually build a wall when I get back to finishing the basement I may take the time and just build the wall now. It would solve my problem once and for all.

I'll figure something out, after all us modeller are a resourceful type aren't we.

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PostSubject: Re: How to eliminate dust! Grrr.   Fri 01 Apr 2016, 2:52 am

Al - It would depending on the balloon placement vs. the A/B nozzle.

Curt - Do you have a central vacuum system? If so, there's a way to connect your booth to the system and apparently works great but I that's all I know.
You will beat the pixies to submission I have no doubt.
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PostSubject: Re: How to eliminate dust! Grrr.   Fri 01 Apr 2016, 9:33 am

Denis, I was thinking along the lines of, if the balloon collects at least some of the paint particles instead of being sucked out of the fan, would that cause even more dust particles?

It's worth a try though.

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PostSubject: Re: How to eliminate dust! Grrr.   Fri 01 Apr 2016, 3:01 pm

I do Denis, I'll have to put some thought into that. Perhaps have the central vac connected to a hood above me while I sit at the booth, and only one fan running in the booth.

Al, what about using the poly sheeting in the same manner. I could make an awning above me that would attract the dust. That stuff is pretty easy to charge as well. Could I not charge it a similar manner as the ballon.

It might just be faster and more efficient to just close off my room from the rest of the basement.


This is an interesting topic of conversation  thanks again for the input. I really want to get this sorted.

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PostSubject: Re: How to eliminate dust! Grrr.   Thu 07 Apr 2016, 10:45 am

Hi Curt,

Not sure if this would be of any help, but, do you have one of those fine mist spray bottles, if so, try giving your spray area a slight water mist coat before spraying, the water should trap any particles long enough for you to move it to your drying area...

Hope you manage to sort it...

Andy...
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PostSubject: Re: How to eliminate dust! Grrr.   Thu 07 Apr 2016, 12:23 pm

Thanks Andy, hope you are well buddy. Yup I have gone that route. Turns out my evironment is just crazy dusty. Currently working towards a final solution hope to have it resolved before the next car build.

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PostSubject: Re: How to eliminate dust! Grrr.   Mon 11 Apr 2016, 6:12 pm

When I go to paint I clean the booth the day before, NEVER the same day. Then I go in and paint and try not to disturb anything in the room. Furnace off (In the winter). I have a squirrel fan set up that is sucking out of the room to outside.
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PostSubject: Re: How to eliminate dust! Grrr.   Mon 11 Apr 2016, 9:11 pm

Thanks for the input Brent.
I am working on a few ideas others have posted up. If nothing works I will set up a second booth just for shells in the cold room. I have a second compressor and I only use one AB for shells and two other ones for parts and fades.
I will figure it out one way or another.

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PostSubject: Re: How to eliminate dust! Grrr.   Tue 12 Apr 2016, 3:26 am

[quote=
It might just be faster and more efficient to just close off my room from the rest of the basement[/quote]

Your in the basement, is the ceiling open or closed ??

Is anybody upstairs walking around or any thing like that ??

The dust is being disturbed and floating around in the air and being picked up by the static from the plastic, paint, your clothes and the fans are moving it into the booth. They make an anti-static ring that you can remove the static from the parts, shell, and I think it will work on clothes also. I'll see if I can find a link for you. I was painting at a dealership that was in an old building and had so much dust that I never used the fan cause it would disturb all the dust from the whole place.
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