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 Post subject: air compressor
PostPosted: Wed Sep 25, 2013 9:47 pm 
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Mahogany
Mahogany

Joined: Sat Jun 16, 2012 2:37 am
Posts: 62
First name: Dave
Last Name: Tays
Country: canada
Focus: Build
Status: Amateur
do you guys think this air compressor would be good enough to finish guitars? I order nitro lacquer today.
http://www.kent.ca/kbs/en/product.jsp?skuId=5750006&navAction=jump&navId=2431&prdId=5750006&catalogId=2431
Plus what type of paint guns are you guys using?


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 Post subject: Re: air compressor
PostPosted: Wed Sep 25, 2013 10:00 pm 
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Cocobolo
Cocobolo

Joined: Sun Nov 09, 2008 4:29 pm
Posts: 140
Location: Markham, ON (Canada)
First name: Charlton
Last Name: Wang
Focus: Build
Status: Amateur
Some people use this very compressor to drive a small detail gun like the Wacom:

http://www.woodessence.com/Walmec-ES-RV ... 40C54.aspx


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 Post subject: Re: air compressor
PostPosted: Wed Sep 25, 2013 11:26 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Apr 02, 2010 10:35 pm
Posts: 2561
Country: USA
Focus: Repair
Status: Professional
Do you have one or are you looking to put together a spray system?

Frankly, I was AMAZED at how much more efficiently HVLP uses material. In the very short long run, the money saved on laquer will more than make up for possibly a slightly more expensive system than it looks like you'd be putting together, although at $359 for that compressor, it's a little small for running a spray gun.

Add a $110 spray gun and you're at $470 already.

The Fuji Semi-pro system is $399 here : http://www.phelpsrefinishing.com/S2.html

And the Mini-Mite 3 is $599 from the same guy, which is plenty powerful for spraying nitro. I have the MiniMite 4 and actually think it's too powerful for just guitars, I would have been fine with the Minimite 3.

Well worth the $120 more, as you will save more than that in material.

The compressor system just blows most of it into the air. You COULD say they just really blow! laughing6-hehe

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 Post subject: Re: air compressor
PostPosted: Thu Sep 26, 2013 4:37 am 
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Contributing Member
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Joined: Sun Dec 30, 2012 10:04 pm
Posts: 712
First name: Doug
Last Name: Balzer
City: Calgary
State: Alberta
Country: Canada
Focus: Build
Status: Semi-pro
Fuji Q3 HVLP.

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 Post subject: Re: air compressor
PostPosted: Thu Sep 26, 2013 6:49 am 
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Mahogany
Mahogany

Joined: Sat Jun 16, 2012 2:37 am
Posts: 62
First name: Dave
Last Name: Tays
Country: canada
Focus: Build
Status: Amateur
Thanks for the info. Looks like I have more options to consider.


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 Post subject: Re: air compressor
PostPosted: Thu Sep 26, 2013 7:58 am 
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Cocobolo
Cocobolo
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Joined: Fri Nov 16, 2012 12:27 am
Posts: 124
First name: Jimmy
Last Name: Edwards
City: Boston
State: MA
Focus: Build
Status: Professional
Here is the EXACT compressor that I have and use. And its WAY cheaper than the one you are looking at. You have to buy compressor oil too btw, so factor that into your cost.
http://www.harborfreight.com/25-horsepo ... 67847.html

Here is a spray gun set that comes with two guns, one a 0.8mm tip and the other a 1.2mm tip, has all the cleaning stuff and surprisingly, the guns are VERY good. Plus with the 0.8mm tip you can spray stain and do bursts that way if you want.

http://www.walmart.com/ip/Campbell-Haus ... t/12534872

So there is an entire set up, adding compressor oil, regulator, and filter you would have an entire spray system for about $50 less than what you would spend on just the compressor you are looking at.

Spray tip, either thin your lacquer with 30%thinner and 70% lacquer and slightly heat the lacquer by putting it in hot water for 30 minutes before spraying to get some good results. On my final coats I like to thin the lacquer to a 60% thinner and 40% lacquer to get a super high gloss finish.


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 Post subject: Re: air compressor
PostPosted: Thu Sep 26, 2013 11:05 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Apr 02, 2010 10:35 pm
Posts: 2561
Country: USA
Focus: Repair
Status: Professional
Yeah.

Plus the material efficiency can save you a lot of money in the long run.

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 Post subject: Re: air compressor
PostPosted: Thu Sep 26, 2013 1:11 pm 
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Cocobolo
Cocobolo
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Joined: Fri Nov 16, 2012 12:27 am
Posts: 124
First name: Jimmy
Last Name: Edwards
City: Boston
State: MA
Focus: Build
Status: Professional
You'll like either way. One of them cost less, and has much more versatility


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 Post subject: Re:
PostPosted: Thu Sep 26, 2013 2:52 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Apr 02, 2010 10:35 pm
Posts: 2561
Country: USA
Focus: Repair
Status: Professional
Todd Stock wrote:
Gun transfer efficiency should be as good as for an HVLP conversion gun as for a turbine gun. The issue is usually that folks buy a cheap gun with crappy atomization and poor fan control, crank up the pressure to fix the problem...the gun ends up well above the tip pressures that HVLP needs and transfer efficiency goes in the toilet. The fix is get a decent conversion gun and learn how to set viscosity, etc. Cheap guns can be pretty decent, even if not very durable. Plan in buying several HF guns, thoroughly clean and defunk, then assemble one decent gun from the best of the parts. IMO, easier to get a decent SATA, Iwata, or similar if using a compressor.


That little 4 gallon compressor won't run a conversion gun though.

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