Data Centers

Powder Coating and E-Coating for Data Center Equipment

From server racks and cabinets to electrical enclosures, cable-management systems, cooling-support structures, and facility hardware, we help manufacturers protect high-value components with consistent, production-ready finishes.

Winona has the high-volume capacity, fast turnaround, and technical coating capabilities needed to support data center equipment manufacturers, fabricators, builders, and infrastructure suppliers. Whether you’re supplying a single equipment platform, supporting an upgrade program, or preparing components for a full facility build-out, we can help keep your production and installation schedule moving forward.

Built for High-Performance Infrastructure

Data center equipment must do more than look clean and professional. Server hardware, enclosures, racks, brackets, cable trays, and other metal assemblies must protect sensitive electronics while supporting installation, airflow, maintenance, and long-term reliability.

A finish that chips, corrodes, peels, creates sharp edges, or builds up excessively around ventilation features can introduce unnecessary risks. Winona helps manufacturers select a coating process that supports both the physical protection and functional performance of the finished component.

That’s the advantage Winona’s durable powder and E-coating applications provide. More specifically:

Durable protection against rust, corrosion, scratches, and handling damage.
Consistent appearance for customer-facing and high-visibility equipment.
Uniform coating coverage on steel, aluminum, and mixed-metal assemblies.
Controlled film thickness around air vents, perforations, openings, and critical interfaces.
Thermally stable finishes for equipment exposed to repeated heat cycles.
Smooth, durable surfaces that support safe handling and maintenance.
High-volume throughput for facility expansions and equipment programs.
Powder coating, E-coating, or combined E-coat / powder coat applications.
Quality-focused finishing for electrical and electronic infrastructure.

Powder Coating for Server Racks, Cabinets, and Enclosures

Powder coating is a durable, efficient finishing solution for many data center components. The electrostatically applied powder is cured into a resilient protective finish that helps resist scratching, chipping, abrasion, moisture, and everyday wear.

For server racks, cabinets, electrical enclosures, and related products, powder coating can provide the clean, consistent appearance expected in professional IT environments while helping protect the underlying metal throughout production, shipping, installation, and years of use.

Powder offers a number of advantages for data center builders, owners, and operators alike:

Durable resistance to scratches, chips, abrasion, and handling damage
Corrosion protection for metal equipment housings and structural components
A smooth, visually clean surface for high-visibility equipment
Broad color, gloss, and texture options
Consistent results across recurring production programs
A non-conductive finish for applicable electrical-component applications
A low-VOC alternative to conventional liquid paint processes

Winona stocks more than 50 powder options and can help data center equipment manufacturers select a finish based on their material, product design, environmental exposure, appearance requirements, and performance specifications.

Protecting Airflow and Thermal Performance

Data center infrastructure depends on reliable cooling and airflow. Equipment located in air paths, near high-heat CPU and GPU systems, or around cooling and ventilation components requires a finish that will remain stable through repeated thermal cycles.

Perforated server doors and cabinet panels
Airflow grating and ventilation components
Cooling-system frames and equipment structures
Cable-management products near electrical or thermal loads
Metal enclosures with tight assembly tolerances
Components that require smooth edges to prevent cable wear or worker injury

A properly applied coating helps protect metal components without unnecessarily affecting the dimensional characteristics of vents, perforations, louvers, grating, or other airflow-critical features. Winona works with manufacturers to review part geometry and coating requirements before production begins, helping identify the right application process and coating thickness for the job.

E-Coating for Complex Metal Components

E-coating is an immersion finishing process that uses electrical current to deposit a uniform, corrosion-resistant coating across conductive metal parts. So it’s especially valuable for components with complex geometry, recessed areas, tight spaces, and other difficult-to-reach surfaces.

For data center infrastructure, E-coating provides thorough coverage on intricate brackets, frames, enclosures, support structures, and fabricated metal assemblies where consistent corrosion protection is essential.

Winona’s E-coat line includes a 13-stage pretreatment process with laser scale removal, zinc phosphate, and RO water. The automated indexing process helps reduce air-pocket effects as parts enter the tank, supporting uniform coating coverage across complex components.

E-coating can be a strong fit for data center components that need:
Uniform coverage and controlled film thickness
Corrosion protection on complex shapes and internal surfaces
Reliable processing for high-volume programs
A durable standalone finish for functional components
A corrosion-resistant primer before powder coating

E-Coat Primer + Powder-Coated Topcoat

Some data center equipment may benefit from a combined E-coat and powder-coat system. In this process, an epoxy E-coat primer is applied first to provide uniform corrosion protection, followed by a powder-coated topcoat for enhanced exterior durability, finish flexibility, and long-term appearance.

The E-coat primer helps protect recessed features and hard-to-reach areas, while the powder topcoat provides a durable outer barrier against scratches, abrasion, moisture, and routine handling. If the powder-coated surface is damaged during fabrication, shipping, installation, or maintenance, the E-coat layer remains beneath it to help protect the metal from corrosion.

This layered system can be a practical option for demanding equipment housings, structural assemblies, outdoor support equipment, or components expected to see frequent handling over a long service life.

Data Center Applications We Support

Winona works with manufacturers, fabricators, equipment suppliers, and builders producing a wide range of data center infrastructure components.

We have specific experience coating many of the common products needed in data center buildouts, upgrades, and regular operation:

Server racks and equipment cabinets
Metal server enclosures and chassis
Electrical cabinets and equipment housings
Cable trays, cable-management brackets, and support structures
Cooling-system frames, guards, and ventilation components
Perforated doors, grating, panels, and airflow-control components
Rail shelving, mounts, and storage systems
Automation-equipment housings and support assemblies
Guardrails, safety structures, and facility hardware
Power-distribution and electrical-infrastructure components
Outdoor equipment enclosures and facility-support products
Custom fabricated metal assemblies for new builds and upgrades

Whether components are made from steel, aluminum, or mixed-metal assemblies, Winona can help identify a coating process that supports their intended service environment and manufacturing requirements.

The Winona Advantage for Data Center Projects:

UL-Certified Electrical Component Coating Supplier

Winona is a UL Certified Coating Supplier for Electrical Components, providing added confidence for customers manufacturing sensitive electrical and electronic infrastructure. This certification supports coating requirements related to film thickness, adhesion, durability, and performance for applicable electrical-component uses.

Quality-Focused Finishing

Winona maintains an ISO 9001:2015-certified quality management system for powder coating and E-coating of industrial, automotive, agricultural, military, and other metal components. That quality-focused approach supports the repeatable processes data center manufacturers need for high-value infrastructure products.

Powder Coating and E-Coating Under One Roof

Winona is one of the few regional finishing providers offering both powder coating and E-coating. Customers can select the right standalone process for their part or combine E-coat primer with a powder-coated topcoat for additional corrosion protection and exterior durability.

Capacity for Large Programs

With two Northern Indiana facilities, more than 217,000 square feet of combined production space, multiple conveyorized powder coating lines, batch capability, and automated and manual application options, Winona can support recurring data center equipment programs and larger facility build-out requirements.

Production and Installation Support

Data center projects are often schedule-driven. Winona works directly with manufacturers, fabricators, and builders to provide responsive communication, quick turnaround, packaging, assembly, and delivery support that can help reduce finishing bottlenecks before installation.

Contact Us About Your Data Center Equipment Program

If you manufacture server racks, cabinets, electrical enclosures, cable-management systems, cooling components, or other metal infrastructure for data centers, Winona can help protect your products with durable powder coating and E-coating solutions.

We will work with your team to review part material, dimensions, airflow features, corrosion requirements, coating specification, appearance expectations, production volume, packaging needs, and delivery schedule.