Looking for paint booth filter info-

[tarbellb]

Im setting up a paint booth and looking to see if anybody has reliable or useful info.

Mainly, what type of filter should I be looking for?

It will be used for just about everything, oil based, water based, rattle can, etc...

The booth itself is setup with a large (36" duct/blade) 2hp motor pulling air vertically up and out. Sealed off with fresh air vents (floor positioned).

Any advice or links to good info is appreciated.

 

[sberry]

Yes, I think they may have fugged up the paint booth basics on finishing academy, well worth a read. I used 4 furnace filters in front of fan and taped the joint with 3/4 masking,, it comes in rolls too. Back in the day when I tried to buy filter it sucked, shopping is easier today on line but if you are like me painted a lot for a while, now a filter lasts a long time.

 

[sberry]

Saves a lot of work if you don't need to make heat at the same time.

 

[laneyracing]

Saves a lot of work if you don't need to make heat at the same time.

Have anymore pictures of your retractable booth? Mainly how you raise and lower it, been thinking of something like this for occasional use but not sure the best way to make it work.

 

[tarbellb]

Thanks sberry I actually came across a previous post of yours when using search.

Hey laneyracing.... go hijack a different thread.

 

[Nor'Easter]

Hey laneyracing.... go hijack a different thread.

Yikes

 

[southalabama]

We used to paint compound bows for a local manufacturer. We had a dedicated paint shop and spray booth.

While spraying the roll up door was raised and we used a furnace type filter in a frame. It was used as pre-filter.

On the paint booth we used paint booth filters which are tacky. Dust stuck to it.

 

[CARS]

Mainly, what type of filter should I be looking for?

Well, If you haven't Googled it yet.... that would be a better place to look than a forum.

EPA laws (rule 40) have changed in most if not all of the country. I think the filters need to be 98% efficient at collecting overspray.

First thing would be to know what size your filter grates are. Mine are 20"x20" both on the intake and the exhaust. 20x25 is also a common size. I'm not too familiar with the blanket style. I think they are used mainly in true downdraft (center floor pit) booths.

Like was said, the intake filters will have a sticky side to capture fine dust that the filter media can't get ahold of. Exhaust is simpler. It's just a means of overspray collection. You use to be able to get styrofoam paint arrestors, but I haven't seen them in a long time. The idea was to break them up and dissolve the filters in thinner/waste paint when done with them. The fiberglass mesh style needs to be disposed of by a company licensed to do so. It's a cradle to grave item, so make sure the company is doing what they say they are doing.

 

[laneyracing]

Thanks sberry I actually came across a previous post of yours when using search.

Hey laneyracing.... go hijack a different thread.

Didn't mean to hijack, as for your original question I get the filters for our booth from the local parts store, they have been very helpful for all our needs, and if you have one with an employee or two that are actually interested in painting or auto body repair they keep up with the newest trends and what works best. Our store sends their guys to classes with 3m and other companies to learn about the products so they are very helpful, depending on your local stores your experience may vary.

 

[tarbellb]

Thanks guys, I did do some googling but always like real world experience from the forum.

Sorry, laneyracing... I got a bit irked when you didnt even make a effort to contribute to the thread.

After some research I found basically what CARS is saying. 98% efficient exhaust, 20x20" is the most common style, and intake filters are usually a tacky style to capture dust.

I will be building a custom grate for the exhaust filters, ordering qty 100 / $42, and qty 20 tacky filters for $28 off Ebay.

 

[A_Pmech]

I recently finished building a paint booth for our robot.

It sounds like you are on the right track. Don't forget to add a manometer to the suction side of your overspray arrestors so you can determine when they are full.

I designed for 100-150 FPM through the overspray arrestors in a downdraft configuration and it works very well!

 

[tarbellb]

Always good to have A Pmech weigh in.

Thanks, I will look to see what a manometer goes for.

 

[A_Pmech]

Tarbell, you should also request the EPA test report from the manufacturer of your chosen paint arrestor. It will tell you at what differential pressure you need to change the arrestors.

 

[rlitman]

...Thanks, I will look to see what a manometer goes for.

Or just use a water level.