SERVICES

Industrial Coating Services – Powder Coating & E-Coating

Winona Powder Coating provides quality-backed, high-volume powder coating and E-coating services for manufacturers that need durable, consistent results and responsive project support.

Since 1974, we have supported customers with powder coating, E-coating, quality-focused pretreatment, fluidized thermal sand bed cleaning, and value-added packaging and delivery services from our Northern Indiana facilities.

Whether you need corrosion protection for demanding environments, a durable decorative finish, part-cleaning support, or a more efficient path from our production line to yours, our team can help solve complex finishing challenges with proven processes and unmatched attention to quality.

Powder Coating

Winona provides industrial powder coating services for steel, aluminum, cast iron, and other heat-tolerant metal components. Powder coating uses electrostatically charged dry powder that is applied to the part and cured in an oven, creating a durable finish that resists impact, moisture, chemicals, UV exposure, scratches, chipping, and corrosion.

With multiple powder coating lines and batch capabilities, Winona can support high-volume production programs as well as large or specialized parts. Customers can choose from a wide range of colors, textures, and powder chemistries to meet functional, aesthetic, and environmental-performance requirements. Learn more about our powder coating services.

See What Our Powder Coating Lines Can Handle

E-Coating

E-coating, also called electrocoating or E-Coat, is an immersion finishing process that provides uniform coverage and exceptional corrosion resistance, including on recessed areas and complex part geometries. Winona is one of the few Midwest finishing companies equipped to offer both epoxy E-coat and powder coating, allowing customers to select the right process or combine both for added protection.

Our TTX indexing E-coat line includes 13-stage pretreatment and zinc phosphate capability, with capacity for parts up to 108 inches long, 48 inches wide, 48 inches high, and 2,200 pounds per load bar. E-coat can serve as a durable standalone finish or as a corrosion-resistant primer beneath a powder-coated topcoat. Learn more about our E-coating services.

 Explore Our E-Coat Capabilities 

Pretreatment

Pretreatment is not a standalone customer service, but it is one of the most important steps behind a high-quality powder-coated or E-coated finish. Before coating, parts must be thoroughly cleaned and prepared so the coating can properly adhere and deliver long-term corrosion protection.

Winona’s automated pretreatment systems remove soils, oils, oxides, and other contaminants, then use carefully monitored rinsing and chemical conversion processes to prepare the metal surface. This process-focused approach helps ensure the finish performs consistently from part to part, whether your production run includes hundreds or thousands of components.

 Start With the Right Surface Preparation 

Packaging and Delivery Services

A quality finish deserves protection all the way to your facility. Winona provides custom packaging and delivery services for powder-coated and E-coated parts, helping customers reduce handling requirements, prevent transit damage, and receive components ready for assembly or installation.

Because our team handles each part as it comes off the line, we can build packaging solutions around your products and workflow. Options include specialty packaging, sleeves or bags, palletizing, and milk-run delivery arrangements. Learn more about our packaging and delivery services.

 Take the Logistics Off Your Plate 

Fluidized Thermal Sand Bed Cleaning

Winona offers fluidized thermal sand bed cleaning for manufacturers that need to remove paint, powder coating, plastics, rubber, resins, grease, and other organic materials from metal parts, fixtures, tooling, racks, and molds. Our Dinamec Fluid Systems sand stripper is one of only a few systems in the Midwest available to outside companies.

The process uses precisely controlled, fluidized silica sand to safely break down organic coatings and contaminants without abrasive damage or part deformation. With typical cycle times of 40 to 60 minutes and same-day cleaning options available for certain needs, this service can help minimize downtime and extend the useful life of valuable production equipment. Learn more about fluidized thermal sand bed cleaning.

 See How Thermal Cleaning Removes Built-Up Coatings