Devilbiss GFG-670 Plus gun - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-21-2005, 12:39 PM
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Devilbiss GFG-670 Plus gun

Does anybody have any experience with this gun. I like it because it comes with 3 tips and has low compressor requirements. Will this gun work with primers also if I was to get a bigger tip? Any recommendations would be apprecieated. Thanks, Allen

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Old 08-21-2005, 07:57 PM
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I've never used it but I'll bump you to the top, maybe somebody that knows it will chime in.
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Old 08-22-2005, 06:09 AM
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I have the gun, but have only sprayed single stage urethane. It sprayed beatifully. When I researched the gun, I found that it is supposed to be excellent for laying down clear. Most don't recommend using the same gun for primers, colors, & clears. The primers can be hard to clean, and potentially screw your color or clears. I also purchased a Finex (Sharpe) (100?) detail HVLP gun, which I was impressed with. There are also Finex full size guns for under $100. That would be a good choice with the right tip for primers & use the 670 for colors & clears. Keep in mind that the 670 is a compliant gun, not HVLP, so the transfer efficiency is slightly less. Good luck!
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Old 08-22-2005, 06:38 AM
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Thanks Toyman, for your input. I hear you on the primer, although, I only paint about one car every few years, and the extra time to do a thorough cleaning wouldn't be a big deal to me. I checked the Devilbiss website, and the seem to have tips for this gun up to 1.9.

I do have an old Binks model 7 (I think) which was a good gun 15-20 years ago that I could use for primer, but its so messy with the overspray.

If you were to purchase just one new all around gun, and money was no object, what would it be?

Thanks,

Allen
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Old 08-22-2005, 10:14 AM
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I've accumulated a few guns over the years, but originally used a Binks #7 pressure feed gun. It was a great gun, & I shot primer & color through it without issue. (Mainly acrylic enamel, Imron was the new hot paint when I started ) My current stable of guns are:
Binks #7 Pressure - retired
Binks #7 knockoff - $30 new - primer only
knockoff detail gun - $30 new - primer only
Sharpe SGF HVLP - $225 new - color
GFG-670 - $350 new - colors & clear
Sharpe Finex 100 - $70 new - colors & clear

I do plan on getting a good HVLP primer gun in the future - Finex/Devilbiss etc. If I look at my entire investment of $705, for the cars that I've painted and will paint it is pretty minimal.

As far as one new gun and money is no object, you can spend $500+ on SATA guns, but you definely wouldn't want to spray your primers through your topcoat or clear gun. If I were in your position, I would check out the 2 gun kits from Sharpe or Sata for higher quality ($350-$800), and you can look at the Vapor or Titan 2 & 3 gun kits ($100 - $150) for knockoffs that do a decent job, or look at Sharpes Finex line. You can pick up those guns for under $100 each. It's up to you.
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Old 08-22-2005, 06:17 PM
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Good input, I agree with you that the cost of the guns are worth the expense, I've painted about 10 cars over the years with my Binks model 7 and I would imagine it paid for itself on the first job. For my latest paint job, '55 Belair, I did all of the body work and had it sprayed professionally, since I wanted a primo job and don't have a paint booth. The guy charged me about $5000 to spray/clear/buff it and it didn't come out that great. I know I can do better myself in my driveway, and save the dough, even if I bought the best gun available.
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