
AUTOCOLOR primer
Do you
need it?
Why choose Nexa Autocolor primer?
The primer helps the paint apply evenly. For example:
- They ensure adhesion to create a bond between the paint and the metal.
- They prevent the paint from penetrating the metal, creating a dull finish.
- They dry quickly, resist rust and are easy to sand.
All you need to know about primers
The importance of primers
The primer fills in any small imperfections. It is a repair coating and protects against rust.
Basic types of primer
- Acrylic enamel primer : it's the easiest to use. First, simply mix it and apply a coat of primer using the tip of a spray gun. Then allow the primer to dry completely before sanding and applying a second and third coat.
- Urethane primer: very popular today. It offers improved adhesion and includes a catalyst hardener for durability. Most of the time, a 2.0 gun nozzle is used to increase the amount of product applied. Three coats are generally applied, waiting 10 minutes after each application.
Different types of automotive primer
- Epoxy primer : Epoxy primer is considered a good standard base when it comes to ensuring that car paint adheres to metal and promotes a quality paint finish. It is specifically formulated to prevent corrosion. This means that epoxy primer for cars cannot be sanded.
- Polyester primer : fills small scratches and dents like a body filler. In fact, its filling capacity is the highest of all sprayable primers. It is therefore perfect for filling in imperfections on the bodywork. However, unlike epoxy primer, it is more brittle and more likely to crack. It is therefore excellent for small repair and filling jobs, but may not be the best choice for a whole car.
- Urethane sealant : This type of primer is best used as a solid adhesive layer to which paint can adhere. It's perfect for painting a vehicle that's already in good condition.
- Acid Etch Primer : This type of primer dries much faster than others, so it's used in many bodywork repairs in car workshops to speed up repair time.
- Enamel Primers/Sealers : Enamel primers are extremely economical and, like epoxy, provide a good base for car paint to adhere to.
- Phosphating primer, also known as wash primer, is an adhesion promoter for steel or aluminium. Its anticorrosive power is low, but it has very good adhesion properties. Don't use body filler on wash primer, otherwise it's a chemical disaster! You should also check that the bodywork support is steel or aluminium, otherwise you risk it becoming detached
- The primer filler that fills and seals all the areas of the bodywork that need filling
- Wet-on-wet primer, also known as no-sanding primer, to increase the rate of repair and boost productivity in the workshop
Primer colours
The primer always affects the way the paint looks once it dries. A primer should be chosen to match the colour of the car's paintwork.
Most car primers are available in black, white, grey and red.
- Black primer : For dark paint colours: such as black, blue and green, we recommend using a black primer. Black primers give deep, vibrant colours, especially when the shades are dark.
- White primer : White primer is ideal if you want your final coats of paint to pop. It gives a glossier finish than other primers. It's the ideal choice for light-coloured cars and metallic paints.
- Grey primer : Grey automotive primers can be used in the same way as grey primers. Grey primer is also ideal for metallic or pearlescent automotive paints. This is the most common car primer colour. It often slightly tones down the final colour of the paint.
- Red primer : Red primer is most often used on cars with rust problems. Its formula acts as a rust inhibitor, making it an ideal choice for older cars.
Which primer should I choose?
- For major painting jobs: When it comes to painting the vehicle surface, epoxy primer is the best option. It's a two-component primer, so it's easy to mix and offers the optimum blend of paint adhesion and corrosion resistance. It dries quickly, making it an excellent all-round automotive primer for mechanics and body shops.
- For small touch-ups: polyester primer is perfect for small repair jobs that require a little filler or body filler. It has the ability to fill small nicks and scratches and sands well. It's the ideal primer for minor bodywork repairs. It is effective for one-off repairs.
- For better protection against rust: when complete rust removal is not possible, the humidity-hardening urethane primer will provide the best protection against rust damage. The auto urethane primer sands easily, dries quickly and retains colour well.
What primers do bodybuilders prefer on Color-Box.eu?
We recommend :
- HS plus grey primer filler P565-5705 with hardener P210-8815.
The first step in deciding which type of automotive primer to use is to determine your needs. In particular, the need for extra protection against rust, strong paint adhesion, etc.
Colorbox offers a wide choice of primers from the Nexa Autocolor brand. To choose the one that best suits your needs, contact our team.