What You Must Know Before Spray Painting Your Car
There are two passageways or channels within the gun. One is for airflow the other for material flow. The fluid needle takes the required paint from the reservoir. As you use the trigger to control the tapered needle, it will pull it from the tip allowing more material through. Simultaneously the trigger regulates the air to allow siphoning of the material from the cup, and atomizes the paint. It is through the fast moving area that a low-pressure area materializes and uses the ambient air pressure as its catalyst to push the material from the cup. Now you can see what it is so important to keep the vent tubes clear and clean.
Some interesting and very important questions are such as these?
Qns 1: There are holes on both side of the air cap - what are they for? These are like an air anvil and are called air horns. This is what allows you paint to flatten out so it makes a pattern. When the air meets the material it is in the impingement zone. As the air comes out of the horn the air hits directly in front of the air cap.
Qns 2: It is now becoming a regulation in many places to clean you gun in an enclosed gun washer. What?s the best way to use these?
If you have never used one before make sure you read and follow all instructions. They are designed to work in cycles of 60 seconds, so don?t leave you gun in there beyond that time period. The cleaning action is like putting your gun fully immersed into lacquer thinner. Can you imagine the shape of your gun if you leave it in too long or too often?
Condensation will form in your gun if you do not change the solvent on a regular basis. This means acids start to form and this is certainly not good for your gun. If you are cleaning, a gravity gun is sure to plug up the air inlet before putting it into the washer. You don?t want the solvent getting in here. Once done remove the gun and dry immediately with a cloth. If the packing starts to leak, you can change it.
Qns 3: My Spray gun produces a bad pattern:
Most likely, a rebuild kit won?t correct the problem. Balance the air with the material.
Some other things to remember is you have to use more that one gun for refinish materials if you are in a compliant area. Temperature ranges are important for HVLP guns if it?s the larger ones; it?s not for the smaller ones. Lubricate you gun with a 4 oz. Mineral oil. Remember to match the fluid nozzles with the type of material you using. Using multiple guns means you don?t have to keep changing tips. Keep your gun in top-notch shape by not dropping it or immersing it in thinned. Avoid harsh chemicals. - 21392
Some interesting and very important questions are such as these?
Qns 1: There are holes on both side of the air cap - what are they for? These are like an air anvil and are called air horns. This is what allows you paint to flatten out so it makes a pattern. When the air meets the material it is in the impingement zone. As the air comes out of the horn the air hits directly in front of the air cap.
Qns 2: It is now becoming a regulation in many places to clean you gun in an enclosed gun washer. What?s the best way to use these?
If you have never used one before make sure you read and follow all instructions. They are designed to work in cycles of 60 seconds, so don?t leave you gun in there beyond that time period. The cleaning action is like putting your gun fully immersed into lacquer thinner. Can you imagine the shape of your gun if you leave it in too long or too often?
Condensation will form in your gun if you do not change the solvent on a regular basis. This means acids start to form and this is certainly not good for your gun. If you are cleaning, a gravity gun is sure to plug up the air inlet before putting it into the washer. You don?t want the solvent getting in here. Once done remove the gun and dry immediately with a cloth. If the packing starts to leak, you can change it.
Qns 3: My Spray gun produces a bad pattern:
Most likely, a rebuild kit won?t correct the problem. Balance the air with the material.
Some other things to remember is you have to use more that one gun for refinish materials if you are in a compliant area. Temperature ranges are important for HVLP guns if it?s the larger ones; it?s not for the smaller ones. Lubricate you gun with a 4 oz. Mineral oil. Remember to match the fluid nozzles with the type of material you using. Using multiple guns means you don?t have to keep changing tips. Keep your gun in top-notch shape by not dropping it or immersing it in thinned. Avoid harsh chemicals. - 21392
About the Author:
Discover how to spray paint your car in 2 hours or less with SprayPaintSecrets. You can download free videos on car spray painting and bodywork repair lessons in the official site now.
posted by X - Men @ 2:02 AM
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