Airbrush spray booth

[Jim R]

I am considering using MRP lacquer paint. I do use lacquers at the moment but not that often. I have a spray booth that vents to the outside but it is only one of those cheapie jobs which may not be really adequate for frequent lacquer use.
I am considering a BenchVent BV 300S-D from Graphicair. Does anyone have experience with this booth.
It is a size I can accommodate and the vent comes from the top of the machine which is important to allow it to fit in the space.

I would value your thoughts.

[BarryW]

That’s what I use to spray MRP. It is an excellent booth but you do need to make sure that you change both the main filter and the carbon filter regularly. The carbon filter every six months and the main filter every couple of months.

[Jim R]

Thanks Barry. Your recommendation plus good reviews generally seem to confirm the choice.

[Modler bob]

Sorry for highjacking your post Jim.
I would love a proper spraying booth, but two things............
1/ cost
2/modeling room/office not on the outside wall for the fumes exit.

So thinking, would this suffice for a year or two maybe?

https://japan-figure.com/en-gb/products/doyusha-terrible-hobby-paint-booth-dx-hobby-tools?currency=GBP&variant=42080038682782&utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&gclid=Cj0KCQiAgOefBhDgARIsAMhqXA4wxPB17zZgL36vSruWQxFkgEXDIcNSOLzV15eisK6E3Sd4TsVGmGgaAvPWEALw_wcB

Bob

[Tim Marlow]

That’s what I use to spray MRP. It is an excellent booth but you do need to make sure that you change both the main filter and the carbon filter regularly. The carbon filter every six months and the main filter every couple of months.

Timescale for filter change does of course depend upon usage hours, but that seems an extremely short life for the main filter Barry? Being a HEPA style filter it should get more efficient with use. Its effectiveness should only be compromised once the airflow across the face drops off. As an example, using a similar system, we used to get about two years out of a dust extraction filter in the dispensing area of our production plant, and operation there was generating a far more aggressive challenge than paint particulates. We used to measure air velocity across the face of the extractor and change the filter when it dropped below a specified value, so I know we were not overusing them.

The carbon filter life, of course, depends upon the solvent being used. Once you can smell hints of residual solvent in the outlet it is time to change it.

[Mark1]

Sorry for highjacking your post Jim.
I would love a proper spraying booth, but two things............
1/ cost
2/modeling room/office not on the outside wall for the fumes exit.

So thinking, would this suffice for a year or two maybe?

https://japan-figure.com/en-gb/products/doyusha-terrible-hobby-paint-booth-dx-hobby-tools?currency=GBP&variant=42080038682782&utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&gclid=Cj0KCQiAgOefBhDgARIsAMhqXA4wxPB17zZgL36vSruWQxFkgEXDIcNSOLzV15eisK6E3Sd4TsVGmGgaAvPWEALw_wcB

Bob

My guess is you could pick up a cardboard box for free somewhere, certainly wouldnt spend money on one, especially one thats own manufacturer has named 'terrible' !.

[Jim R]

Interesting thoughts Tim. At the moment I change the filter when it looks dirty and if the airflow seems less. Not very scientific I know. There are just so many variables, hours in use, what is sprayed, how much over spray etc. In the great scheme of things I suppose filters are not too expensive and better safe than sorry.

[Waspie]

I've already stored away a couple of boxes for the purpose of a booth! I also have a spare extractor fan after a misdiagnosed failure of the shower fan! (It was an isolator issue) Duh!!!
Still I only need a couple of cooker hood filters, some mesh to sandwich the filters between and hopefully be well on the way to build the booth. Some 4 inch flexi hose for extraction at some point.
Some really good vids on YT and loads of advice on here pointed me in the DIY direction. Plus can't justify the money I'm told by higher authority!!!

[Modler bob]

Cheers guys.
Waspie........ Amazon used to waste boxes that only held smaller items, and I left them in the garage (Just in case lol).
But now I've started modeling again and bought an air spray kit. S*ds law i've dumped them
I see one can buy boxes new, so that might be what to do.
I'll just have to buy a box large enough to incorporate a filter, I've already got chicken wire

[Waspie]

Cheers guys.
Waspie........ Amazon used to waste boxes that only held smaller items, and I left them in the garage (Just in case lol).
But now I've started modeling again and bought an air spray kit. S*ds law i've dumped them
I see one can buy boxes new, so that might be what to do.
I'll just have to buy a box large enough to incorporate a filter, I've already got chicken wire

Hahaha, my boxes are indeed 'Amazon'! Have you looked at YouTube? Some good designs on there!!!

[BarryW]

Timescale for filter change does of course depend upon usage hours, but that seems an extremely short life for the main filter Barry? Being a HEPA style filter it should get more efficient with use. Its effectiveness should only be compromised once the airflow across the face drops off. As an example, using a similar system, we used to get about two years out of a dust extraction filter in the dispensing area of our production plant, and operation there was generating a far more aggressive challenge than paint particulates. We used to measure air velocity across the face of the extractor and change the filter when it dropped below a specified value, so I know we were not overusing them.

The carbon filter life, of course, depends upon the solvent being used. Once you can smell hints of residual solvent in the outlet it is time to change it.

Actually no Tim. There is a label on top of my units that says 6 months for the carbon filter regardless of usage. They also recommend to replace the particulate filter 6 times a year.

See below.

[Waspie]

Cheers guys.
Waspie........ Amazon used to waste boxes that only held smaller items, and I left them in the garage (Just in case lol).
But now I've started modeling again and bought an air spray kit. S*ds law i've dumped them
I see one can buy boxes new, so that might be what to do.
I'll just have to buy a box large enough to incorporate a filter, I've already got chicken wire

Just pop down the local supermarket, they always have tons of boxes, might have to sift through a few but I'm sure there will be some decent quality cardboard you can cannibalise for your use!!!!

[JR]

In my old wood working shop I had a dust extractor over the bench . Cleaning required the removal of the base drum plate ,if a piece of paper placed over the base fell off when the extractor was switched off after a certain number of seconds the filter needed cleaning !

I'd be careful with any extractor using none acrylic paints ,hoses can become lined with paint particles, and using a cheap fan with out good insulation can cause a spark . Not a good mix with enamel type paints .

[JR]

Actually no Tim. There is a label on top of my units that says 6 months for the carbon filter regardless of usage. They also recommend to replace the particulate filter 6 times a year.

See [ATTACH]477449[/ATTACH]below.

Yes Barry carbon filters have a use by date , as the carbon filter degrades over time . Spray mask filters have a use by date stamped on the side , my local building supplier was unaware that all their filters were out out date !


Once opened, maximum use time is 6 months (even if not used). The carbon will absorb contaminants from the general environment. When contaminant can be detected by smell or taste.
https://multimedia.3m.com › ...PDF
Why and when to replace your 3M™ Filters!

Interesting read.

[Guest]

I change my filter every couple weeks when I notice a marked reduction in suction. Particulate only as I stick to acrylics.

[ATTACH=CONFIG]n[/ATTACH]