Collision Blast - Spray Gun Adjustment And Spraying Techniques

There is a difference between the two. To determine which is needed for the product that you are spraying, read the technical data sheet for the products being sprayed.

Each product may recommend a different size. For example, primer surfacer may recommend 1.6 to 1.8. Base coat may require 1.3. To determine the correct fluid tip size read the technical data sheet.

The fan pattern adjustment controlls the how small or wide the pattern sprays. This can be anywhere from a small circle to a wide pattern.

It is very important to always spray the same angle as the substrate you are spraying. If the gun is not angeled correctly, you will not get propper coverage, which will cause a number of problems.

The atomization is the process of breaking the material into small drops, which is controlled by air pressure. The higher the pressure the more atomization (little drops). The lower the air pressure the less atomization (bigger drops.)

The fluid adjustment acts as a trigger stop on the spray gun. Turing the adjustment clockwise will allow less fluid and turining the adjustment counter clockwise will increase the amount of fluid.

Applying the material too thick will cause the paint to run.

Yes, you should always wear your PPE when working with paint chemicals.

Base coat should be applied with a medium-wet coat. You should never try to apply basecaot too heavy, as this will cause paint problems, such as mottling.

If you think of the robots that spray in the car plants, the robots spray accurate, even, and steady passes. Concentrate on distance, speed, angle, and overlap to achieve superior results.

Most solvent based paints require 50% overlap.

This is true, a high quality spray gun will produce better results. Do not get the cheapest spray gun available for spraying base coat and clear coat. However, the more expensive does not always equal a better spray gun.

Lighting is very important to see the material being applied, but does not affect your gun adjustment.

Always adjust the travel speed and distance at the same time. If you are further away, you need to slow down. If you get closer, you will need to move faster.

A gravity spray gun is the most common spray gun used in paint shops today.

No, the recommended fluid tip for primer surfacer is 1.6 to 1.8.

The atomization is the process of breaking the material into small drops, which is controlled by air pressure. The higher the pressure the more atomization (little drops). The lower the air pressure the less atomization (bigger drops.)

You can produce a high quality paint job at 8 to 10 inches. This also provide more control for the person spraying. As you become more comfortable with the spray gun, you can try spraying closer, but you will have less control. For example, if you hesitate for a split second when spraying close, you are probably going to have a run.

On the technical data sheet, it will specify how long of a pot life each products has. This can be anywhere from minutes to hours. If the catalyzed product is in the spray gun longer than the recommended pot life, it will start to harden inside the spray gun.

No, excessive mill thickness and runs would be caused by gun speed that is too slow. Gun speed that is too fast would result in the mil thickness being too thin and poor coverage.

No, the recommended fluid tip is a 1.3 MM.

The recommendation is a good starting point, but the gun, your air set-up, and individual spraying techniques may require fine tuning the spray gun.

You do not need to tear the spray gun completely appart after each use if you clean it immediately after each use. Simply using a spray or squirt bottle to rinse the gun clean, removing the fluid tip and brushing the fluid nozzle and fluid tip, then wiping all access thinner of will clean the spray gun. The key is to clean it immediately after each use.

No, the process of releasing the trigger half way to only allow air is called triggering.