Introduction
OUEST COATING is a French industrial surface-engineering company specializing in thermal spray coating and related finishing processes for demanding applications, including the plastics industry. Founded in 1989 and headquartered in Saint-Nazaire, France, it operates as part of the Polimiroir Group and serves a largely international customer base, with about 70% of activity outside France and 30% in France.
The company’s core capabilities include HVOF, atmospheric plasma spraying, arc spraying, oxy-gas spraying, and cold spray, alongside machining, grinding, polishing, brazing, and inspection services. In plastics manufacturing, these technologies are particularly relevant for industrial rolls, especially in the plastic film segment, where coated surfaces must resist wear, abrasion, adhesion, and corrosion while maintaining tight surface-finish tolerances.
History and Development
OUEST COATING was established in 1989 in Saint-Nazaire, in western France, and has remained focused on industrial coating and surface treatment since its creation. The company is legally structured as a société anonyme and is classified under the French metal-treatment activity code 25.61Z.
A key aspect of its development has been its integration into the Polimiroir / PMG industrial group, which combines mechanical engineering, machining, and high-tech surface-treatment expertise across affiliated entities. This structure has supported OUEST COATING’s ability to offer both coating and post-processing under one industrial umbrella.
The company has also expanded its process portfolio over time. Industry listings note that it invested in cold spray equipment in 2016, reflecting a move toward newer surface-deposition methods suited to aerospace and advanced industrial uses. Its participation in recent trade-fair and business-network listings also indicates continuing activity in international industrial markets, including plastics-related applications.
Business Operations and Segments
OUEST COATING operates as a specialist surface-treatment manufacturer-service provider, rather than as a plastics processor in the conventional sense. Its business is centered on the treatment of metallic components and industrial parts through coating, machining, and finishing operations.
Its activity can be understood in four main operational areas:
- Thermal spray coatings for wear, corrosion, thermal, and anti-adhesion performance.
- Precision machining and finishing, including grinding and polishing.
- Repair and refurbishment services for industrial parts, including coated rolls and other high-value components.
- Specialized brazing and assembly-related services, including honeycomb and metallic-felt brazing.
The company’s industrial footprint is modest in scale but technically specialized. Official French business records describe a workforce in the 20–49 employee range, while third-party listings have reported approximately 35 employees in more recent years.
Products and Technologies
OUEST COATING’s technical offering is built around a range of surface-deposition and finishing technologies.
Key coating processes
- HVOF (High-Velocity Oxy-Fuel) spraying for dense, wear-resistant coatings.
- Atmospheric plasma spraying for ceramic and functional coatings.
- Arc spraying for metallic protective layers.
- Cold spray for lower-heat deposition applications and repair work.
- Oxy-gas spraying for selected coating requirements.
Coating materials
The company states that it works with a range of coating families, including:
- Ceramics
- Chrome carbides
- Oxides
- Tungsten carbides
- Stellite
- Abradables
These materials are used to tailor surface properties such as hardness, friction behavior, wear resistance, and resistance to aggressive operating environments.
Surface engineering capabilities
OUEST COATING also reports complementary capabilities that are important in industrial roll and precision-part production:
- Machining
- Grinding
- Polishing
- Non-destructive testing
- Honeycomb soldering / brazing
- Surface roughness control ranging from very fine finishes to more textured surfaces, with reported capability from about Ra 0.002 μm to Ra 20 μm.
The company states that it can treat parts up to 2 meters in diameter and 6 meters in length, which is significant for roll-based industries and other large industrial components.
Applications and End Markets
OUEST COATING serves several industrial sectors, with a strong orientation toward high-performance rotating parts and wear-critical surfaces.
Main end markets
- Plastics and plastic film
- Steel
- Energy
- Aerospace
- Defense
- Printing
- General industry
Plastics industry relevance
Its most visible plastics-sector application is the coating of industrial rolls used in plastic film production. In such environments, roll surfaces must deliver stable release behavior, dimensional consistency, and resistance to abrasion and chemical attack. OUEST COATING and Polimiroir have also developed a Hard Coat technology for chill rolls intended to replace hard chrome plating in response to REACH regulatory pressure, which is relevant to the broader transition away from certain chromium-based surface technologies in Europe.
This positions the company as a niche but relevant supplier in the plastics supply chain, especially where surface quality and durability affect film process stability and product finish.
Global Presence and Market Position
OUEST COATING is headquartered in Saint-Nazaire, in the west of France, where it operates from a site described as a 4,800 m² factory on 20,000 m² of land. Its reported commercial mix is approximately 30% domestic and 70% international, indicating that it is export-oriented despite its mid-sized profile.
The company is linked to the broader Polimiroir Group / PMG SI structure, which connects it with related entities in France, Poland, and China according to business-network sources. This group setting appears to support cross-functional industrial capabilities, especially where coating must be combined with machining or maintenance.
Trade-fair and business listings show that OUEST COATING presents itself internationally as a specialist in thermal spray surface coatings, especially to industries requiring high-performance rolls and refurbished components.
Sustainability and Environmental Initiatives
The company’s most explicit sustainability-related position concerns the substitution of hard chrome plating with its Hard Coat technology for chill rolls, a development presented as being aligned with REACH regulatory requirements. This is relevant because chrome-based surface treatments have faced increasing environmental and regulatory scrutiny in Europe.
Its broader process portfolio also suggests a focus on repair, refurbishment, and surface extension, which can support component life extension and reduce replacement demand in industrial systems. However, the available sources do not provide detailed public reporting on emissions, energy use, or formal sustainability targets, so any broader environmental assessment would remain incomplete.
Financial Performance and Economic Impact
Publicly available third-party financial databases indicate that OUEST COATING is a small to mid-sized enterprise with annual revenue in the single-digit millions of euros. One source reported turnover of about €6.6 million for 2023, while another listed sales of about €6.33 million for 2024. Xerfi data for prior years showed revenues of approximately €4.9 million in 2019, €4.4 million in 2020, and €4.4 million in 2021, suggesting a business that has operated within a relatively stable mid-scale range.
The company appears financially significant primarily as a specialized industrial supplier rather than as a volume manufacturer. Its economic contribution lies in high-value coatings, repair, and surface-engineering services for industries where component downtime and surface failure are costly.
Leadership and Corporate Governance
French business registries identify David Guillon as the company’s President of the board and Chief Executive Officer. Trade-fair materials and company listings also name Laurent Melaye in general-management roles in some contexts, suggesting a division between statutory governance and operational representation in external communications.
The company is organized as a SA à conseil d’administration, or public limited company with a board structure, and its registered office is located on Rue Thomas Edison, ZI de Brais, 44600 Saint-Nazaire.
Innovations and Future Outlook
OUEST COATING’s future trajectory is closely linked to the evolution of advanced surface engineering in sectors that require durability, precision, and regulatory compliance. Its investment in cold spray, its continued use of multiple thermal-spray families, and its development of hard-coat alternatives to chrome plating point to a strategy centered on process diversification and compliance-driven innovation.
For the plastics industry, its outlook is tied to demand for high-performance rolls, particularly in film manufacturing, where coatings can influence uptime, surface quality, and maintenance cycles. More broadly, the company’s combination of coating, machining, and finishing capabilities gives it a role in refurbishment markets where customers seek to extend the useful life of expensive industrial parts.
Summary
OUEST COATING is a technically specialized French surface-treatment company that serves multiple industrial sectors, including the plastics industry, through thermal spray coatings and precision finishing. Its relevance in plastics is strongest in industrial roll coating for plastic film production, where it offers engineered surface solutions designed to improve durability and process performance.
References
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CPS+ eMarketplace. (n.d.). OUEST COATINGOUEST COATING. CPS+ eMarketplace. https://www.chinaplasonline.com/eMarketplace/ExhibitorInfo?CompId=1025491Link