Tecnologia & Inovação 24/09/2025

Painting of carbon components: innovation and quality

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The Importance of Coating in Advanced Composites

painting-operator

Carbon fiber coating is not only an aesthetic choice, but also a crucial technical step to protect the material from UV rays, chemical agents, and environmental stress. In the automotive, aerospace, and industrial sectors, surface finishing directly impacts the component’s durability and its integration with other systems. At Bucci Composites, coating is an integral part of the production process—on par with autoclave polymerization or HP-RTM technology—and contributes to long-term performance reliability.

Surface Preparation: The Foundation of Quality

carbon-fiber-operator

To ensure optimal adhesion of the protective film, the carbon laminate surface undergoes a series of essential operations:

  • Sanding and controlled micro-blasting, which remove unwanted residues and create the micro-roughness required for paint adhesion;
  • Cleaning with specific solvents, effective at eliminating organic and inorganic contaminants such as oils and dust;
  • Application of compatible primers for epoxy and polyester resins, essential to ensure perfect chemical bonding with the protective layer.

These steps significantly reduce the risk of paint delamination during use, ensuring coating stability even under extreme conditions while enhancing the surface's visual quality.

Coating and Functional Protection

polishing-detail

The coating cycles used by Bucci Composites serve two primary purposes. First, they provide functional protection against UV rays—which degrade the polymer matrix—and against solvents, oils, and fuels, which are particularly aggressive in racing and industrial applications.

Secondly, they increase the resistance of components in harsh environments, including marine and aerospace contexts, where material reliability is essential.

In addition, coating enhances the carbon fiber aesthetic: transparent finishes highlight the weave pattern, while opaque coatings ensure visual uniformity. Special effects and advanced pigments are also available, always in compliance with mechanical and durability requirements.

Aesthetic Standards and Quality Control

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To guarantee repeatability and high-quality standards, Bucci Composites combines the expertise of highly skilled operators with dedicated technology systems at every stage of the production process.

Each coated component undergoes aesthetic and dimensional inspections using advanced tools, including:

  • Light arches, to ensure high visual quality;
  • Ultrasound-based thickness control, specific for composite materials;
  • Gloss measurement tools, to evaluate and monitor surface shine levels;
  • Waviness control instruments, to ensure perfect surface finish uniformity.

This integrated approach guarantees a uniform coating, essential for protecting the component from external agents and preserving its technical and aesthetic characteristics over time.

Coating and Functional Protection

At Bucci Composites, coating carbon components is not an optional step—it is a strategic element that plays a key role in the final quality of the product. Thanks to an approach that combines deep know-how, highly qualified personnel, and advanced control systems, the company offers reliable, high-performance solutions that meet the rigorous standards of demanding sectors such as automotive and aerospace.

For more information about our processes, the Bucci Composites team is at your disposal.

Find out more about Bucci Composites

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