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My Siphon/Suction spray gun is spitting, sputtering or blowing bubbles in the cup.

Possible solutions: Fluid tip is not properly seated into the head of the gun – tighten fluid tip. Make sure the air cap is suction/siphon ...

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How to test your spray gun for HVLP compliance?

If you are using a HVLP (High Volume Low Pressure) spray gun and it is required by a regulatory agency, the spray gun must be operated at 10 psi or le...

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How do I choose an airless tip?

The size of an airless fluid tip will depend on the following: The fluid delivery requirements. The size of the pattern required. The viscosity of ...

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How to lower your cost when changing colors or flushing a fluid line?

One of the major uses for solvent in a spray finishing system is flushing out a paint line when changing colors cleaning the system. This is typically...

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I need a part sheet, service bulletin or operator manual.

The most frequently asked for Binks service bulletins are: 2001 Conventional Gun, 77-2316 Mach 1SL HVLP, 77-26Mach 1 HVLP, 77-2463 7 Convention...

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How do you calculate spray booth airflow?

A properly designed and operating spray booth in a finishing facility is a major ingredient in the achievement of the finish required by the manufactu...

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My spray gun<br/> is spraying heavy<br/>  to one side of pattern.

Possible solutions: Rotate air cap 180 degrees and spray a test pattern – this will determine if the heavy is associated with the air cap Dri...

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How much does the air cost that I use in my spray gun?

Is air free? Technically, the air we use is free, but the cost to compress that air is not. Factors to consider are: Local electrical costs ...

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Why am I getting a meager flow from my tip?

1. Tip is partially plugged. Reverse the spray tip and trigger the gun to clear clog per instructions in your manual. Remove and clean the tip, but do...

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How much coverage can I expect to get out of a gallon of paint?

The Answer depends on the following: - The percent solids of the coating - The transfer efficiency of the equipment - The thickness of the paint ap...

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What are the advantages of "triggering" a spray gun?

Triggering a spray gun refers to momentarily releasing the trigger when the spray gun has passed the end of the part and is moving to the position for...

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How does a diaphragm pump work?

Diaphragm pumps are typically 1:1 ratio pumps. They have four ball checks that work in unison with the direction of the diaphragm movement in the pump...

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What criteria should be known when selecting a Spray Gun?

The selection of a spray gun is an important decision to make in the design of a spray system. Matching the gun and fluid source to the application is...

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How do I hook up the hoses to my pressure pot?

The answer depends on: Whether the pot has one or two regulators. What type of regulators the pot has. Single regulated – first example: See ...

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Why do I get streaks in my spray pattern?

Streaks in the spray pattern, especially heavy bands at the outside edge, is an indication of low pressure at the tip. Turn up the pressure control kn...

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How do I choose an airless tip?

How do I choose an airless fluid tip? The size of an airless fluid tip will depend on the following: 1.The fluid delivery requirements. 2.The size ...

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How do I know what size needle and nozzle is best for my application?

Although every job may have slightly different requirements, for most materials it is best to choose a mid-size, or No. 3, needle and nozzle. If your ...

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How do I adjust the Back Pressure Regulator (BPR) in a circulating system?

The BPR in a circulating system provides a set amount of resistance (back pressure) to the circulating flow of coatings. A simple circulating system i...

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Why is my gun spitting a small paint stream of paint after I release the trigger?

The cause of the problem is that the needle is not seating properly in the seat. You will need to either purchase a kit for the gun needle and seat or...

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What criteria do I use to decide between a dry filter and water wash spray booth?

Dry filter booths use a paper or synthetic filter bank to trap the solid portion of the coating. Water wash booths use a curtain of water to capture t...

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Why did my airless gun stop spraying?

The tip may be clogged. Turn the black plastic arrow shaped handle to the unclog position (arrow facing rear of the gun). Aim the gun into a waste pai...

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What fluid tip, needle and air cap would I use to spray a particular product?

The best answer is to check the material Product Data Sheet (not the MSDS) to see if the coating manufacturer has tested the sprayability of the mater...

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What is the difference between an airless and an air assisted airless spray gun?

Both airless and air assist airless spray guns use high fluid pressure to atomize. Fluid is forced through an elliptical shaped orifice. The orifice s...

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How long should a gun last before needing to be rebuilt? What can I do to make it last longer?

This depends on what material you're spraying and how many gallons sprayed per day. For example, with lacquers, guns don't need rebuilding as often be...

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What is the correct way to use a viscosity cup?

Viscosity cups come in several types and sizes. Zahn and Ford are the most common. Cup manufacturers recommend that the cup be used to measure viscosi...

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How does tip wear affect my spraying?

Tip wear is gradual, usually over days or weeks. The operator will attempt to compensate by doing the following: Increase fluid pressure (an attempt...

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How much compressed air is stored in a storage tank?

It depends on the pressure. Notice in the example below, the higher the pressure, the smaller the area the original cubic foot of air consumes. If ...

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How does tip wear affect my setup?

Flow rate increases: As the tip wears, the physical opening in the tip increases. An increase from .015” to .017” (two one-thousands of a...

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Am I a "Major Emitter" or an "Area Source" (EPA definition?)

Most of the Federal EPA regulatory laws passed in the last 15 years are based on two factors: The SIC code of your industry Your level of ...

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How can I make my tips last longer? What causes tip wear?

Fluid tip wear on airless/air assist airless guns is caused by several factors. The pressure being used. The size and shape of the tip. The abrasiv...

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What are ways to make your spray finishing operation more environmentally friendly and at the same time save money?

1.Lower your fluid and air pressures on your air atomized gun. Savings in air could result in $300 per year per gun. Coating costs and emissions would...

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How should the air cap be cleaned?

Remove the air cap from the gun and immerse it in clean solvent. If necessary, use a bristle brush to clean dried paint. Blow it dry with compressed a...

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10 Ways to go Green and Lean.

1. Lower your fluid and air pressures on your air atomized gun. Savings in air could result in $300 per year per gun. Coating costs and emissions woul...

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What causes the spray pattern of my airless gun to feather?

The problem you refer to as feathering is also known as tailing. This is due to low fluid pressure at the tip. To avoid feathering or tailing, increas...

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10 Common HVLP Questions

1. How does HVLP differ from conventional air spray? Conventional air spray air cap pressure is nearly the same as the input pressure entering the sp...

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How do I prepare the paint?

Always prepare paint in a clean, dust-free environment. Paint has a remarkable ability to pick up dirt. Dirty paint will not only clog your spray gun,...

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What causes a top or bottom-heavy spray pattern?

Horn holes plugged - Clean holes with non-metallic point (i.e. toothpick) Obstruction on top or bottom of fluid tip - clean Cap and/or Tip seat dirt...

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What is the NFPA?

The NFPA (National Fire Protection Association) is a non-governmental agency that creates safety guidelines for various industries. NFPA 33 is written...

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What types of requirements or permits would we need to put in a vented paint booth?

You might not need a permit from your state air pollution control agency if you are using "very little" paint, but the fire department will probably w...

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Should a lubricator be used on a diaphragm pump?

No. Lubricators are not recommended on diaphragm pumps. An air filter is recommended to maintain good clean dry air.

What are the advantages of using electrostatic equipment over conventional spray equipment?

There are many advantages to using electrostatic spray equipment. The primary advantage is an increase in transfer efficiency. (45% - 90%) With the in...

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What parts of the spray gun require lubrication?

The fluid needle packing A, the air valve packing B and the trigger bearing screw C require daily lubrication with a non-silicone/nonpetroleum gun lub...

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What is a "Quality Finish"?

A quality finish is a finish that meets the needs of the manufacturer and the ultimate product owner. A couple of points must be remembered. 1. It ...

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Do I need an Air Make Up unit with my spray booth?

The proper air flowing into a spray booth meets the following conditions: 1. Adequate volume 2. Adequate velocity 3. Clean 4. Conditioned if neces...

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The pump on my lube truck seems to operate fine, but material volume has dropped. What might be the problem?

If the pump is being used outdoors and the temperature has dropped, the material has thickened resulting in lower pump performance. Pump performance c...

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I maintain my sprayers with my own mixture of spirits, solvents and mild cleaning solutions. Is there any material I should avoid using for this process?

Our pumps are designed to withstand almost all solvents and cleaning solutions. In general, it is recommended that you complete your cleaning by flush...

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I cannot trigger my spray gun. What causes this problem?

Trigger safety is in the SAFETY position. Put trigger safety in SAFETY OFF position. Refer to your Instruction Manual for the operation of your partic...

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What causes dry spray?

A dry spray finish is characterized by a rough, almost sandpaper texture. It can be caused by several things including the coating, setup and techniqu...

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Automated Finishing Systems
AUTOMATED FINISHING SYSTEMS improve Productivity Costs, Waste, Voc/Hap

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Why should I use a Wet Film Thickness gauge?

A wet film thickness gauge is designed to give the spray operator immediate feedback as to the film build just sprayed. In most cases, measuring the d...

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What is the typical annual schedule for dry filter spray booth maintenance?

Preventative maintenance on a spray booth will help reduce the likelihood of fires and explosions. -Regular maintenance of the booth system and mai...

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What is the air consumption of a diaphragm pump in cubic feet per minute?

As a general rule PUMP RATIO X FLOW RATE (GPM) @ 100 PSI = CFM. All diaphragm pumps are a 1:1 ratio, therefore the flow rate in GPM will equal the cub...

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Automated Finishing Systems
AUTOMATED FINISHING SYSTEMS improve Productivity Costs, Waste, Voc/Hap

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How do I care for heated hoses?

A heated hose is an electrical product and should be handled as such to prevent damage. Some best practices to reduce hose damage include: DO'S 1. U...

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Where can I find out more information regarding spray gun fundamentals, material application, finish problems, and the latest information regarding spray gun technology?

Please refer to the following list of publications offered on this web site. The documents are in pdf form and represent the most asked-about questio...

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 What type of respirators are available for spray finishing?

Spray finishing creates a certain amount of overspray, hazardous vapors and toxic fumes. This is true, even under ideal conditions, and there is no wa...

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There is oil leaking out of a small hole underneath the air motor of my pump. Can this hole be plugged?

No! If oil is coming out of the small hole underneath the air motor of your pump, the throat packing should be replaced. It may also be advised to ens...

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How often should I tighten the packing nut on my airless sprayer?

It's a good practice to check the packing nut on a weekly basis and slightly tighten if it is necessary. Paint visible in the wet cup or on the rod su...

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I am experiencing orange peel in my finish – my finish is irregular and bumpy with craters.

“Orange Peel” can have multiple causes. It happens when the surface of the coating starts to dry before the base paint dries. The main ca...

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What size air hose should I use for my spray gun?.

The size of an air hose supplying a spray gun is dependent on the length of the hose required and the air volume requirements (CFM) of the spray gun t...

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Cleaning procedures for polycabonate booth walls

1. Wash the booth walls with a mild soap or detergent (such as Joy Dishwashing Liquid) and lukewarm water, using a clean sponge or soft cloth. DO NOT ...

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I have a new diaphragm pump and it leaks almost immediately after installation. This leak usually occurs around the diaphragms, or at the manifolds. What can be done?

Polypropylene is a very soft almost waxy material that when it is compressed, instead of pushing back against the compression, like a Buna material, i...

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Do I have to flush my sprayer at the end of the day?

It is recommended that you flush the unit out every night to prevent paint from curing in the pump, which can be time consuming and costly to correct....

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What is the difference between Conventional, HVLP, Turbine HVLP and Trans-Tech (LVMP) technologies?

Please refer to the following: Conventional: Conventional spray guns typically operate at pressures of 40- 60PSI out of the air cap. Atomization is t...

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What is the proper method of adjusting the "Fluid Adjustment Knob" on a pressure feed gun?

First let’s define the primary purpose of the Fluid Adjustment Knob. Located directly in front of the Fluid Adjustment Knob (Figure 1) is a spri...

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What is the minimum velocity of paint in a circulating system?

Circulation of paints and similar materials containing pigments or fillers requires fluid flows velocities high enough to maintain the contained parti...

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What codes does my booth required to meet?

Most municipalities/cities require that paint booths, including installations, meet National Fire Protection Association (NFPA) Chapter 33, OSHA 1910,...

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How do you solve the problem of fracturing diaphragm pumps while they are being used as a feed supply pump?

It is not recommended to use a low-pressure pump to feed a high-pressure pump without the addition of a high pressure check valve installed directly b...

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What causes excessive pressure drop on the main line gauge of the filter/regulator?

The compressor is too small to deliver the required air volume and pressure for all tools in use. The compressor is not functioning properly. There ...

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Can I mount the electrostatic air hose to a reel mounted on a trolley cart which is grounded? Do I need a grounding wire at the gun to prevent paint from coming back to the painter holding the gun?

Gun grounding to the hose reel is required. The grounding of the reel and the pump is more critical. You need to ensure a wire is run from the base o...

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What are my options for mixing two component materials.

There are currently 3 primary methods for mixing two component materials? Hot Potting Mechanical Proportioning Electronic Dosing W...

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What is the importance of the quality of water in a pretreatment process?

Water is arguably the most important component in the pretreatment process comprising greater than 95% of the pretreatment process chemistry. Surpris...

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How does heat relate to viscosity in a coating?

Before tackling the heat vs. viscosity issue, let’s review the importance of viscosity.  When setting up a spray gun, the choice of air cap...

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How do I improve booth energy efficiency?

-Start by upgrading the fan motor. Replace it with one meeting the newer, premium energy efficient electric motor standards. These motors are constr...

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How do I get the pump to prime, especially first thing in the morning after it's been sitting all night?

The most common cause of this situation is an intake ball that is not seated properly. Tap on the pump lower with a rubber mallet to dislodge the bal...

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Why is air control equipment necessary?

 Raw air, piped directly from an air source to a spray gun is of little use in spray finishing. Raw air contains small, but harmful quantities o...

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What is the life expectancy of my hose?

HELP - Hose Expected Life Predictor is a guide used to explain the factors utilized in choosing paint hose materials. Please visit http://www.hosco....

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What horsepower compressor will I need to operate my spray gun and tank or pump?

Possible solutions: Check your part sheet or service bulletin for the air flow required for the particular spray gun and pump. Pressure tanks c...

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Material Safety Data Sheets vs. Product Data Sheets

A Material Safety Data Sheet (MSDS) is required to be on-site at a spray finishing location. OSHA dictates the on-site requirement as well as the cont...

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What is the difference between a valve and a regulator?

In this example we will compare an air valve and regulator although the same data could be applied to fluid valves and regulators. In figure 1 below,...

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How do I back flush the fluid hose to my pressure pot and why should I do this?

The cost of many modern coatings is in the area of $100 per gallon or more. If one can recover the coating from the fluid hose before flushing the hos...

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