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Thursday, March 7, 2013

Quality Shop Series: Spray Guns

The spray gun is a key component to achieving an excellent finish, but choosing the right gun for the job is sometimes difficult. Recently, our sales team went through the Liquid Spray Finishing Workshop by ITW Industrial Finishing.  At Intech, we strive to stay educated on the latest equipment and technology in order to research and select products that are best for the job. Following our training, we updated the Spray Equipment offerings and resources on our website.  After evaluating all liquid spray gun options on the market, the CoaterONE team increased our offerings to include Devilbiss® Compact™ HVLP, Conventional Air Spray, and Trans-tech Spray guns. We feel any of these guns are a good choice for the application of DuPont™ Liquid Teflon® industrial coatings.

Your selection will be based on what is of highest priority to your shop and the specific job.  Some of the factors that your shop might consider in the selection process are:
·      EPA regulations/environmental concerns
·      Size and quantity of parts
·      Finish quality
·      Atomization of the coating
·      Transfer efficiency
·      Viscosity of the material
·      Production rate
·      Energy efficiency

When selecting a spray gun you must first select one of the gun platforms:
·      Air Spray (Conventional)
·      HVLP (High Volume Low Pressure)
·      Compliant (Trans-tech)

Then choose a feed system that is right for your job: 
·      Siphon feed
·      Gravity feed
·      Pressure feed
When spraying DuPont™ Teflon® industrial coatings with a gravity feed or pressure spray gun, it’s recommend to use a 1.4 mm fluid tip/needle but for the siphon feed gun, you’ll want to use a 1.8mm. If you need additional fluid tip/needles for other applications, we have all tip/needle sizes to fit our guns for sale on the website.

Cleaning your spray gun is an important step because not keeping your gun in good working order can stop or slow production.  One way to prevent problems with your gun is to have repair and cleaning kits for your guns on your shop floor.  For just over $50, you can have parts and cleaning supplies at your fingertips.  This could also prevent major maintenance bills or having to toss your gun all together.  We’ll have more Insiders to come on troubleshooting, repair, and cleaning of spray guns.

If you have any questions or need help selecting a spray gun that fits your specific job, we’ll be happy to help. I hope you’ll take a look at our new Spray Gun Section of our website and give us a call. 

Selecting the Right Gun Platform for the Job


  1. The chart on the bottom of the article is really helpful. I think it is difficult for a lot of people to determine which type of gun is best for each situation. Great article!

  2. I like the chart on the bottom. I think it is really helpful in determining which type of gun to use for each situation. This seems to be something a lot of people struggle with or may not realize they are using the wrong type. Great overall article.