Primer

Body filler primer is an essential step in vehicle repair and restoration. This surface preparer, although sometimes underestimated, is the key element that allows for a flawless finish while ensuring the durability of the paint. It is mainly intended for bodywork professionals, as its application requires precise and rigorous expertise!

What is the purpose of a primer?

A primer, or undercoat, plays an essential role: it creates a stable surface for paint application. It acts as an insulator between the metal and the topcoat, preventing corrosion and rust. Thanks to its slightly rough texture, paint layers adhere perfectly. Primer also masks stains and imperfections and is recommended for overly smooth surfaces.

Without primer, your work may be compromised:

The paint won’t adhere properly and may peel off.
The desired color might not be achieved.
Risk of yellowing.
The need for multiple paint layers, increasing costs.
Lost time on retouching.

When should you apply a primer?

Applying primer depends on the condition of the surface:

New, never-painted surface
Metal surfaces (use epoxy primer for insulation and anti-rust protection)
Steel or aluminum surfaces (use phosphating primer, or wash primer—do not apply filler over it)
Filled or repaired areas (choose a high-build primer)
Time-saving jobs (use a wet-on-wet primer, no sanding required)
Polyester surfaces (use polyester primer)
Color changes (a white primer makes it easier to switch from dark to light shades)

Primer colors

Primer color depends on the final paint shade and nearby parts (bumpers, rims, fenders…). Choose:

White primer for white, yellow, or light orange shades (tri-coats)
Light gray primer for light color charts
Dark gray or black primer for dark color charts

All about the Sikkens brand

Sikkens, part of the AkzoNobel group, has existed since 1792. With over 225 years of experience, the brand is recognized for its expertise in automotive refinishing. Sikkens products—trusted by professionals worldwide—combine efficiency and ease of use.

With strong investment in Research and Development, Sikkens develops formulas that meet international standards, designed to address body shop challenges and optimize productivity and profitability.

Focus on Sikkens primers

Sikkens primers offer:

Increased paint longevity
Excellent adhesion on smooth surfaces
Yellowing prevention
Imperfection sealing
Enhanced bonding strength

Choose ColorBox for your primers

ColorBox, trusted by over 15,000 body shop professionals, guarantees efficiency and speed. We offer the largest stock of products in France and a dedicated technical team ready to assist you.
All references are available and delivered within 12 to 24 hours.

Contact us for more information or to order online.