| are two passageways or channels within the gun. One | | | | a cloth. If the packing starts to leak, you can change it. |
| is for airflow the other for material flow. The fluid | | | | Qns 3: My Spray gun produces a bad pattern: |
| needle takes the required paint from the reservoir. As | | | | Most likely, a rebuild kit won’t correct the |
| you use the trigger to control the tapered needle, it will | | | | problem. Balance the air with the material. |
| pull it from the tip allowing more material through. | | | | Some other things to remember is you have to use |
| Simultaneously the trigger regulates the air to allow | | | | more that one gun for refinish materials if you are in a |
| siphoning of the material from the cup, and atomizes | | | | compliant area. Temperature ranges are important for |
| the paint. It is through the fast moving area that a | | | | HVLP guns if it’s the larger ones; it’s not |
| low-pressure area materializes and uses the ambient | | | | for the smaller ones. Lubricate you gun with a 4 oz. |
| air pressure as its catalyst to push the material from | | | | Mineral oil. |
| the cup. Now you can see what it is so important to | | | | Remember to match the fluid nozzles with the type of |
| keep the vent tubes clear and clean. | | | | material you using. Using multiple guns means you |
| Some interesting and very important questions are | | | | don’t have to keep changing tips. |
| such as these… | | | | Keep your gun in top-notch shape by not dropping it or |
| Qns 1: There are holes on both side of the air cap - | | | | immersing it in thinned. Avoid harsh chemicals. |
| what are they for? | | | | You must be in control of your spray gun at all times in |
| These are like an air anvil and are called air horns. This | | | | the following areas…a) Judging the correct |
| is what allows you paint to flatten out so it makes a | | | | distance from the gun to the objectb) Proper trigger |
| pattern. When the air meets the material it is in the | | | | actionc) Control of the speed at which you are |
| impingement zone. As the air comes out of the horn | | | | workingd) The angle at which you hold the gun. This |
| the air hits directly in front of the air cap. | | | | requires techniques such as heeling toeing and |
| Qns 2: It is now becoming a regulation in many places | | | | fanning.e) Constantly watch what you are doing so |
| to clean you gun in an enclosed gun washer. | | | | you apply evenly. Do a perpendicular pass at a |
| What’s the best way to use these? | | | | constant even speed. If you go slowly, you will apply |
| If you have never used one before make sure you | | | | more paint whereas if you go fast you will decrease |
| read and follow all instructions. They are designed to | | | | the amount.f) Make sure you are wetting the |
| work in cycles of 60 seconds, so don’t leave | | | | surfaceg) Each pass must overlap the previous |
| you gun in there beyond that time period. The cleaning | | | | application by about 50%h) Make sure you |
| action is like putting your gun fully immersed into | | | | don’t double pass the same area |
| lacquer thinner. Can you imagine the shape of your gun | | | | If you observe a problem let the paint flash and fix the |
| if you leave it in too long or too often? | | | | problem on the second pass. There will be some flow |
| Condensation will form in your gun if you do not | | | | after application but this will depend on the amount of |
| change the solvent on a regular basis. This means | | | | reducer and hardener you have used. Once the paint |
| acids start to form and this is certainly not good for | | | | catalyzes though whatever is showing is what will |
| your gun. If you are cleaning, a gravity gun is sure to | | | | remain until you correct it. |
| plug up the air inlet before putting it into the washer. | | | | Remember to take your time follow all the steps and |
| You don’t want the solvent getting in here. | | | | you will master any weaknesses you have with your |
| Once done remove the gun and dry immediately with | | | | spray painting in no time with practice. |