Motorcycle paint primers 

To form the foundation work of the paint, just before the other types of motorcycle paints, there is a series of products called primer that are applied before the paint and clearcoat. We will detail and explain here the different types of primers for motorcycle and their roles (APP) which is mainly : ADHERE, PREPARE, PROTECT.

Each motorcycle paint primer is a primer that is suitable for a certain material, a certain surface. There are universal primers, but their effectiveness is of course less specialized and less good.

Adhering :

On a motorcycle, when you want to redo a « brand new » paint on the fairings, the support is usually, neither plastic, nor metal: it is clearcoat, that is, the old finish present on the bodywork. There is no difficulty in adhering after a light sanding, no primer is needed to adhere.

The other roles of a motorcycle paint primer

We can find different raw materials, on the fairings (plastic, fiber) or on the stripped tank (steel), fork heads or rims (aluminum, metal alloy), or sometimes carbon or chrome... On each of these materials, if you paint without primer, you will inevitably see a delamination at the slightest impact. Each material has its own specific primer, to guarantee an infallible adhesion.

Preparing :

Preparing the surface to be painted is a specific manual action (cleaning, sanding, degreasing) and it is also the role of a motorcycle primer, smoothing, surfacing, filling. This is the role of the filler (to block and fill) in the first step and it is the role of the « filler » surfacer that is applied with a spray gun or an aerosol, in the second step. With motorcycle filler primer, the surface is absolutely perfect and primed!

Protecting :

This is the function of a motorcycle primer for metal : its anti-corrosion action protects the metal from oxidation that can develop under the paint.

Multi-function or universal primers

There are products that work quite well on plastic, metals... There are opaque or transparent products. And there are also products that are absolutely bad and to be avoided (the aerosols sold in stores).

You can use a universal primer if you have several types of surfaces and you do not want to buy different products. However, if you want maximum quality of work with a guarantee of good performance, then it is better to use products specially designed for each type of surface.

How to fill fiber ?

After a repair on a fairing with fiberglass or following the manufacturing of a carbon fiber part, we find ourselves with an uneven surface. Of course, it must be levelled and filled with a thick product before painting it : two solutions for two cases :

1 - If you want to fill and smooth the fiberglass, you must use the filler : we offer various types. If you want to keep the flexibility of the parts, you must apply a minimum thickness. In addition, concentrated flexibilizer can be added.

2 - If you want to fill and level a carbon part, but keep the transparency, then you have to use the epoxy glaze 4000, which allows you to pour a coat from 1 to 10 mm thick !

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