Car Spray Painting Made Easy - 4 Tips You Need To Know!

Posted on 26 October 2016 Jake Martin

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Achieving a consistent and high quality finish in the spray booth can seem a daunting task, even for professionals who know how to spray paint a car correctly. But by applying a few basic principles to your work, car spray painting can be made easy. Following these car spray painting tips will help you achieve reliable results for your customers each time. They will also help you avoid common finishing issues and reduce the number of coats you need to use.

1) Consult Your Technical Data Sheets Every Time

The most important part of spray-painting a car is understanding the products you are working with. Our range of KAPCI paints and products are used by hundreds of body shops to deliver professional results for their customers. KAPCI paints come with detailed technical data sheets that make it easy for you to achieve the correct paint ratio and viscosity. Consulting your data sheets before you mix your paints is a good practice that will reduce the problems you may encounter when it comes to applying the paint. Even for experienced sprayers, it is advisable to refer to the sheets prior to any job, as each paint manufacturer will be slightly different in the ratios they recommend.

2) Paint: Getting The Right Ratio

Achieving the right mix with your paint is an important part of the refinishing process. For great results we suggest using Kapci products for you entire repair job including fillers, primers, paints, clears etc.

For primer (such as Kapci 626) the recommend ratio is 5:1:2 of filler, hardener and thinner.

For your base coat, (such as Kapci 670) we recommend a thorough mixing of the paint before use, even when a premixed, solvent-based paint is used. Mix it up on a 1:1 ratio with a good thinner, (such as Kapci 610). This ensures a smooth finish and also makes the paint easier to load into your gun.

With the clear coat, (such as Kapci 6030) you can use a 2:1 mixing ratio clear to hardener for a reliable result. We recommend that you consult the technical data sheet for thinner requirements (thinner helps the paint to adhere to the surface better and aids your flow rate when using a fluid-tipped spray gun).

3) Prepare Your Surface

A lot of the issues encountered by professional sprayers come from surface contamination. This can result in the final finish looking patchy, or in a poor colour match. Sanding and degreasing your panel surface thoroughly will help reduce any defects when you start spraying. A good quality degreaser, such as our KAPCI 605, will ensure the best results. To avoid residue being left on the surface, professional degreasing cloths should be used – with a two cloth, wipe on/wipe off method being the most effective.

4) Use The Right Coverage

The key to achieving the right coverage is to go in at low pressure and build up the coverage over successive sprays. Start off with around 50:50 overlap, spraying the edges first before moving onto the panel face. Keep your spray movement steady and the pressure in your gun consistent. We recommend a spraying pressure of 2 BAR for application of basecoat and Clearcoat and if necessary reducing the pressure to around 1.5 BAR for the application of a dropcoat/mistcoat.

An even coverage is more important than speed, especially when dealing with metallic paint. As you work your way down the panel, maintain a steady overlap to avoid having to do more coats than necessary.

How To Achieve The Perfect Colour Match

All these tips and many more are featured in our free tutorial video by FLP Group’s Jordan Salt. In the video Jordan explains both the products and the techniques required to achieve a perfect colour match each time. Please click here to access the video, and don’t forget to take a look through our website to browse our range of high quality paints and spraying products.

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