Car Painting Procedures

After we clean the metal, make sure it’s dry before we begin to mask the car, also do a last minute check to be sure it’s free of all dirt grease and other contaminants.

Now it’s time to mask the car, and be sure to mask all that you don’t want painted leaving no masking hanging of the car, that would get in the way of a nice paint job. The main idea of the whole thing is to produce the best quality paint possible with the given surroundings, it is preferred that you have a paint booth, but if not, make sure that the area that you use to perform the work is ultra clean and dust free.

After the car has been masked it’s time to get ready to spray the primer, once again make sure that you have cleaned your surroundings, it’s best to have some water on the floor to keep the dust down, once you are confident that the area is clean then you can begin checking the spray guns to be sure that they are clean. This is a very important step especially if they’re not your guns, dirty guns will make an ugly paint job there for wasting all of your time.

Now that you have determined that the paint guns are clean, make sure that your respirator is in good working order. Now be sure that you have all the products that you need to perform the primer job on the car. You will need primer, reducer and catalyst, you will also need strainers, stir sticks and a measuring device.

It’s best not to have to leave the paint booth during the time that your priming the car. Reducer comes in different temperatures and you need to know what temp is best for your working conditions.

If you are really serious about the way that you want it to look the you might want to take the primer one step farther and use an etching primer before you spray the urethane or epoxy primer, an etching primer will give the top coat just a little more to stick to. Etching primer has no building qualities there for it’s not used for smoothing out waves in your work, but it will make the primer stick allot better.

I do suggest that you always use a urethane primer,and not lacquer type,as lacquer can and will shrink urethane or epoxy is recommended for best results. Epoxy is a very hard primer to sand but it’s extremely tough, and urethane is I think probably your best choice,because it’s high building and easy sanding, their are a lot of brands to choose from, I use DuPont euro myself but it’s all up to you to choose that.

Follow all instructions on the back of the paint can to the letter or it could cause problems with the out come of your paint.

Now that you have the car in the booth, be sure to double check the masking on it, what you are looking for here is perfection and nothing less.

This means everything that if you don’t want it painted it must be masked for sure, their is no room for error here. Now you need to take a look at the supplies that you have to do the job with, and inventory them to be sure that you have everything you need to complete the job, the last thing you need is to find that you don’t have something right in the middle of painting the car. Here’s a list of what you will need for the job.

Supply List

1) Paint
2) sealer
3) reducer
4) Catalyst
5) Tack Cloths, preferably designed for clear coat
6) Measuring Cups
7) Stir Sticks 8) Measuring Stick
9) Strainers
10) Respirator in working order

Now I will give you a few things to think about, if your painting with metallic paints then you must pay allot attention to the settings on your paint gun. Metallic paints will tend to get lighter if the pressure goes up and darker if it goes down, your fluid flow and fan on your gun will also effect this.

Now I will give you a basic mixing chart, most paints will follow this chart.

Instructions
1) get your paint ready to pour.
2) make sure that your mixing cup is clean.
3) Get your strainer and sticks.
4) Put a strainer in the top of the measuring cup.
5) Now pay close attention to the level of paint in the cup.

Paint Mixing Table. Always be sure to read and follow the paint manufactures mixing guide lines. These mixing ratios are just a basic idea of what to do, things will change with different manufactures.

Recommended Air Pressure At Gun Head. Paint Mix Ratios. Paint Product.
25-40 PSI Mix 4:1:1 Base Coat
25-40 PSI Mix 4:1:1 Sealer
25-40 PSI Mix 4:1:1 Clear Coat
25-40 PSI Mix 2:1:1 Primer Coat

When using a paint gun, you try to achieve a certain spray pattern without any heavy or light areas, in the pattern chart above you would try to achieve pattern (A).

Comments are closed.