Avoiding dust

[luchjeg6]

Why, when I spray a body everytime small dust parts land on the paint???
How can I avoid this. I have dust both inside and outside my house!

Second thing: After painting a body I want to clearcoat it and so I wash it before spraying clear colour... After washing some round parts of dry water are on the body... how can I clean them out without dirtying the body with dust?

[jano11]

Buy or build a painting booth.

[MPWR]

A spraybooth will help. But you should understand that it is not the ventilation and filtration devices in a spraybooth that control dust. Contamination control is up to you cleaning your booth before painting. If you do not clean it, a paint booth becomes very dirty very quickly. All the paint that you spray that does contact the model dries and becomes dust to contaminate the next body that you paint. So each time you paint a body, the booth must be made completely clean- like you are getting ready for surgery. Good booth ventilation means that when you spray, the booth does not collect and concentrate the vapors in the box where your model and face are. But dust control is really about making your painting area clean.

[godfather23]

I have made a very good experience spraying outside and then rushing the sprayed body immediately into the microwave. Even very wet coats don´t collect dust there...You just need to be fast. I don´t live in the desert, though.

[rockinanko]

I can tell you how i control dust (still not 100% dust free) but i leave it up to you to decide if it's workable for you...

i do my wet coats....in the toilet!
yes, toilet with the door & window closed & the floor filled with water!
i placed the body inside & start flooding the floor with water, then i go out & prepared my paint...after a while (i assume dust has more or less settled on the watered floor) i come back & start doing the wets coat...one layer then go out close the door & come back @10mins repeatedly for 3 times...

that's how i minimise dust buildup.

[MPWR]

Novel approaches.

There is nothing special, or particularly clean about the inside of a microwave. Like an oven, stovetop, food processor, paintbooth, or any other appliance in regular use, they must be made to be clean. They do not make or keep themselves clean. An easier solution would be a sealable plastic food container.

But if your using fast drying paint (like aqueous acrylic or lacquer) it's really only dust present while you're painting that you need to worry about. Anything that settles on the body after the paint is applied can easily be brushed away after with a clean cloth, lens cleaning brush, or some very fine sandpaper.

[luchjeg6]

MPWR: "But if your using fast drying paint (like aqueous acrylic or lacquer) it's really only dust present while you're painting that you need to worry about. Anything that settles on the body after the paint is applied can easily be brushed away after with a clean cloth, lens cleaning brush, or some very fine sandpaper."

Exactly, the problem is the dust that it's present while i'm painting the problem!!

[KevHw]

When it comes to dust, I always consider airflow around the model/painting area. Dust mostly falls and so I always try to make sure that there is a good flow of air above and around the model so that no dust falls onto it. The air being blown over obviously also needs to be dust free, so I try to filter it.

Using a "booth" or as I use the poor-man's booth...a box...simply reduces the size of the "room" you're spraying in, so making it much, much easier to control the quantity and movement of any dust present. When using my box or "booth", I mainly concentrate on the exhaust system and thus try and work along the same principles of a vacuum chamber (like they use for making computer processors).

I never wash before applying clear coat...more especially so if there are decals .

[godfather23]

Originally Posted by MPWR

Novel approaches.

There is nothing special, or particularly clean about the inside of a microwave. Like an oven, stovetop, food processor, paintbooth, or any other appliance in regular use, they must be made to be clean.

Now, come on. You are right from an objective point of view but you have to admit that this one of the more cleaner and dustfree places in a home. And its regular use - which is rather clean - adds to this.

So please everybody, my advice was not an objective one so I shall edit it: I personally have achieved good results using a clean microwave to dry my paint jobs. That is I must admit more sincere and truthful.

End of novel.

Robert

[klutz_100]

I recommend you get a dehydrator.

I fought it for a couple for years because I thought it was a bit overkill. How wrong I was!

It will not only provide you with a (relatively) dust free environment with a positive airflow/preassure but it also dries your paint out very quickly which significantly reduces the risk of any dust sticking to your wet paint.

Also remember that any small dust/hairs/fibers that get into the paint during the painting stage can usually be easily sanded out and the area polished back up to a shine. After all, I don't suppose you are talking about dust at the levels of ..... (or are you? )

Honestly, you wouldn't believe the dust lying around in my workroom in the cellar and I don't really have an issue since I started using the dehydrator.

My

[BVC500]

I was lucky when I used to paint on the balcony of my apartment in Miami and I rarely ever got a speck of dust in my paint. It was a north facing balcony with walls on three sides. Oh, how I miss it! Good preparation, no doubt, but also good air quality and the right conditions.

[MPWR]

Originally Posted by godfather23

Now, come on. You are right from an objective point of view but you have to admit that this one of the more cleaner and dustfree places in a home. And its regular use - which is rather clean - adds to this.

Maybe your microwave is cleaner than mine. I might guess that the radiation keeps things fairly bacteriologically inert in there, but certainly not clean. Every time a reheating curry boils a bit in mine, it splatters bits of debris here and there. Also because a microwave is a somewhat heavy five sided opaque box, it can be rather difficult to asses how clean it really is/isn't.

But then on the other hand if it works for you, there's no real reason to change it.

A dehydrator may help with outgassing paint. But as the real concern is dust during the painting process instead of dust after, I'm not sure how much it would help with contamination control. Honestly when I've just applied a coat of paint and it is still soft, the very last thing I want to do is risk moving it anywhere. It's just too easy to bump it into something and mar/ding/damage the paint- and that for me is alot more work to fix then brushing off some dust. I've learned from experience that an hour or so sitting unmoved and undisturbed in the booth with me not around to bump it/admire it/mess with it is by far safest. If I leave it alone, it does not get dropped on the floor, crushed by a dehydrator lid, or melted with a cup of tea.

[racer917]

I always spray outside and then hang up the parts, and yes even car bodies, to dry under my porch roof and I never get dust on them.

[drunken monkey]

Originally Posted by MPWR

There is nothing special, or particularly clean about the inside of a microwave. Like an oven, stovetop, food processor, paintbooth, or any other appliance in regular use, they must be made to be clean. They do not make or keep themselves clean. An easier solution would be a sealable plastic food container.

unless you have one of them swanky ovens that has a self cleaning mode where it basically goes mini-supernova inside to burn up any cooking gunk left inside.

[nakadds]

Originally Posted by luchjeg6

MPWR: "But if your using fast drying paint (like aqueous acrylic or lacquer) it's really only dust present while you're painting that you need to worry about. Anything that settles on the body after the paint is applied can easily be brushed away after with a clean cloth, lens cleaning brush, or some very fine sandpaper."

Exactly, the problem is the dust that it's present while i'm painting the problem!!

You could get an air purifier/cleaner. I turn it on 30min before painting. Helps to cut down the amount of dust particles floating around.