Thanks Rod, Dave
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I hoped it would be that simple
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| Which extractor fan for spraying? http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=24535 |
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| Author: | Matthew Jenkins [ Tue Nov 10, 2009 3:39 pm ] |
| Post subject: | Which extractor fan for spraying? |
Hi guys I'm currently spraying two guitars with EM6000 and the white spray dust is driving me nuts. I'm using a corner of my shop which is sealed off with plastic and I'm spraying through a window. This is not ideal. I need to get an extractor fan fitted but I don't know what size to get for the job. I need to know the 'Extraction Rate in Cubic Metres per Hour' for the appropriate fan to do the job. Any suggestions would be much appreciated. I have an electrician all ready to go. Thanks Mat P.S. I will only be using waterbornes so do not want an explosion proof fan. |
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| Author: | Rod True [ Tue Nov 10, 2009 3:44 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Honestly, a simple box fan in the window with a couple of furnace filters on the inlet side is sufficient for your needs. No need to get any more elaborate then that, unless you plan on offering spraying services for others or do a lot of spraying all year long. |
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| Author: | Dave Stewart [ Tue Nov 10, 2009 4:05 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
You could just use your duct collector. I have used a knock-down booth venting into the dust collector on several guitars using Target Ultima. (I think there's a pic in one of my posts) |
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| Author: | Matthew Jenkins [ Tue Nov 10, 2009 4:37 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Thanks Rod, Dave I hoped it would be that simple |
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| Author: | Michael Dale Payne [ Tue Nov 10, 2009 5:13 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Just a cautionary reminder to be on the safe side. A box fan is safe non-flammable finishes like waterborne lacquer, but not for high flammables like nitro |
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| Author: | Fred Tellier [ Tue Nov 10, 2009 5:49 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
A squirrel cage blower from an old furnace works real well and can be found quite cheap including a functional motor. Check with local heating cooling contractors they often take these to the scrap metal yards. I vent mine out with a couple dryer vents. Fred |
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| Author: | the Padma [ Tue Nov 10, 2009 6:11 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Fans eh. Me coulden't find a furnace blower, so like the Padma walks into the local grow op store and lays this line on them... "Its 10 x 20 x 8ft and Me wanna exhust it in under 3 min." Dude says "Use this. Just plug it in the wall. $300." Looks like a really short turbine engine off an airplane. Cut a 6 inch hole in the wall, put a light dimmer on it, pluged her in. Works great. Is all me knows about exhust fans. Blessings |
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| Author: | Ken C [ Tue Nov 10, 2009 10:19 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Dave, How well does the DC work? Can it move enough air to really keep the dust down? I'm in the same position as Mat and also using Target's waterborne finishes. However, I don't have a window in my garage I can open, so I need to recirculate air. I had read about a few of you guys using DC's, but wondered if a DC would move enough air to really help. In the past I have built during the winter and sprayed in the spring when the garage warmed. I'd move all the cars out, dust everything up well, then vacuum when I was done. I have an overhead air filtration unit, but with the whole 1000 sq foot garage open, it really couldn't keep up. I now have overhead radiant tube heat in my garage so I can spray during the winter. But I really don't want to be moving cars in and out of the garage. My thoughts were to situate a portable booth near my overhead filter and either use my DC or a box fan with a couple of furnace filters to pull the the bulk of the overspray. I guess I could try the DC, and if that doesn't work use a box fan. Dave Stewart wrote: You could just use your duct collector. I have used a knock-down booth venting into the dust collector on several guitars using Target Ultima. (I think there's a pic in one of my posts)
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| Author: | Bob Hames [ Wed Nov 11, 2009 6:32 am ] |
| Post subject: | Re: Which extractor fan for spraying? |
Hi Have you had a look at this thread. viewtopic.php?f=10101&t=23932&p=332644#p332644 Bob |
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| Author: | Dave Stewart [ Wed Nov 11, 2009 9:39 am ] |
| Post subject: | Re: Which extractor fan for spraying? |
Ken, it gets about 80%. I see you were also aboard the thread Bob referenced, so we're covering the same ground. If you need the cars to remain dust free, you'll need an enclosed booth. |
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| Author: | Ken C [ Wed Nov 11, 2009 10:25 am ] |
| Post subject: | Re: Which extractor fan for spraying? |
Thanks Dave, Yeah, I was aboard that thread as well. I have been focused in getting heat installed in my garage over the last few weeks, and am just about there. I am now turning my attention on the spray booth. I've given up trying to keep dust entirely off the cars. I'll throw dust covers on the non drivers, but I still want to reduce dust as much as possible. I put a posting up a couple of weeks ago on WoodNet and the majority of posters who replied felt a DC simply wouldn't move enough air and suggested using a box fan with furnace filters to pull air would be a better solution. However, I sensed non of these chaps had actually tried to use a DC. If your setup removes about 80%, that may be good enough for my purposes as well. Think I'll try your solution and see how it works. I have a guitar waiting to be sprayed and hopefully will get to over the Thanksgiving holiday. Easy to add a box fan later if necessary. Ken Dave Stewart wrote: Ken, it gets about 80%. I see you were also aboard the thread Bob referenced, so we're covering the same ground. If you need the cars to remain dust free, you'll need an enclosed booth.
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| Author: | Rene [ Wed Nov 11, 2009 1:10 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Mr. Padma, Can you give more info on the exhaust fan you describe as looking like a short airplane engine?A name, website, or photo would be great. Also, is it safe to spray nitro with it's use? Thanks in advance and BTW I really enjoy your posts! And one more thing- what means Padma? Rene |
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| Author: | gchir [ Wed Nov 11, 2009 1:17 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
rip an electric fan out of a car at the junk yark, get a old car battery, and you'll be moving air for under $20. a better way is to get an electric motor and a fan from a car that has a pully attached to it, mount the fan in a box (welding an axle and berring on usualy required) with the pully outside of your shop, run a fan belt to your electric motor (also out in the fresh air) , and that is as good as any "explosion proof fan" that ive seen. |
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| Author: | gchir [ Wed Nov 11, 2009 3:20 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
at the wood shop i use to work at we needed to recirculate the air, we were trying to be environmental. i wish i had a picture, but i will try to explain. we built a box on top of our paint room, about 3' x 3' x 10' (it needs to be big enough to slide a couple of heater filters into) cut some 2 sqfoot holes in the roof that turned the box into a tube, then we routed out some slots to drop the filters into and covered the holes with filters. we went out and bought a fan ,that firemen use to pull smoke out of a house that has been on fire (hands down the best exhaust fan you can buy), and set that in the middle of our tube between the filters. if you were standing under the in-vent when it turned on your hair would stand up on your head. i would guess that room was about 20' x 20' x 10', and that set up would clear the room in under a minute. |
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| Author: | the Padma [ Wed Nov 11, 2009 11:16 pm ] |
| Post subject: | Re: Which extractor fan for spraying? |
Rene wrote: Mr. Padma, Can you give more info on the exhaust fan you describe as looking like a short airplane engine?A name, website, or photo would be great. Also, is it safe to spray nitro with it's use? Thanks in advance and BTW I really enjoy your posts! And one more thing- what means Padma? Rene Yo, Rene Here is a link to an Elicent fan....although it is not the make I have...they are quite similar. Virtualy identical. Don't know the make of mine and me not about to climb up the wall and yank it to find out. http://www.hydroasis.com/hy/productdeta ... &product=6”-elicent-in-line-fan-309-cfm Me was wrong about the price ...was $200 CDN Don't do drugs so woodn't know about nitro. Me use it for moving sawdust and or WB finishes. Thank you for asking. Is not "Mr. Padma" its "the Padma" ~ lotus familiy, lotus liniage. And yes, its my real name. blessings the Padma |
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| Author: | Ricardo [ Thu Nov 12, 2009 10:07 am ] |
| Post subject: | Re: Which extractor fan for spraying? |
Ditto Rod True. But I set my spray booth outside so I don't know what residues are still in the air on the outside of the booth since furnace filters aren't meant to clean air born spray out of the air. |
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