Aluminum Castings Company LLC – QMS Certified to ISO 9001:2015 & PED 2014 with TUV Rheinland of North America

Aluminum Castings Company

Aluminum Castings Company provides painting and powder coating support for OEMs and industrial manufacturers requiring finished aluminum castings with added surface protection and appearance consistency. Located in Galesburg, Illinois, we serve manufacturers nationwide with aluminum sand casting and value-added manufacturing services.

Our operation supports projects ranging from prototype castings to repeat production manufacturing. In addition to aluminum casting production, we help customers coordinate finishing processes that support corrosion resistance, surface durability, and finished component requirements.

By combining casting production, machining, inspection, and finishing support, we help manufacturers simplify production coordination while maintaining process consistency throughout manufacturing.

Request a quote to discuss your aluminum casting and finishing requirements with our team.

What Is Painting and Powder Coating for Aluminum Castings?

Painting and powder coating are finishing processes used to improve the appearance, durability, and environmental resistance of aluminum castings.

These finishing methods help protect aluminum components exposed to:

  • Moisture
  • Corrosive environments
  • Outdoor conditions
  • Chemical exposure
  • Surface wear
  • Industrial operating environments

Painting and powder coating may also help manufacturers meet application-specific appearance requirements and assembly specifications.

At Aluminum Castings Company, we support aluminum castings requiring secondary finishing processes as part of broader manufacturing programs.

Our production capabilities include:

  • Aluminum metal casting
  • Sand casting
  • CNC machining
  • Surface preparation
  • Grinding and trimming
  • Inspection and dimensional verification
  • Finishing coordination support

These services help manufacturers streamline production while maintaining quality oversight throughout the manufacturing process.

What Is the Difference Between Painting and Powder Coating?

Both painting and powder coating are used to finish aluminum castings, but each process offers different performance characteristics depending on the application.

Painting

Industrial painting applies liquid coatings to aluminum surfaces to improve appearance and provide environmental protection.

Painting may be selected for applications requiring:

  • Specific color requirements
  • Industrial coating systems
  • Corrosion protection
  • Surface sealing
  • Cosmetic finishing

Painting systems may vary depending on the operating environment and application requirements.

Powder Coating​

Powder coating applies a dry powder material electrostatically to the aluminum casting surface before curing the coating under heat.

Powder-coated aluminum castings are commonly selected for applications requiring:

  • Durable surface protection
  • Improved wear resistance
  • Corrosion resistance
  • Consistent coating thickness
  • Long-term exterior performance

Powder coating is commonly used on aluminum castings exposed to industrial, transportation, or outdoor environments.

The appropriate finishing process depends on the component application, environmental exposure, performance requirements, and customer specifications.

Who Uses Painted and Powder-Coated Aluminum Castings?

Painted and powder-coated aluminum castings are used across multiple industries requiring durable and finished metal components.

Our aluminum castings support manufacturers in industries including:

  • Agriculture
  • Heavy equipment
  • Mining
  • Marine manufacturing
  • Transportation
  • Power generation
  • Defense and military manufacturing
  • Ventilation and compressor systems
  • Industrial equipment manufacturing

These industries often require aluminum castings capable of maintaining structural performance while also meeting environmental and surface durability requirements.

We regularly support projects involving:

  • Prototype castings
  • Production manufacturing
  • Large aluminum castings
  • Machined castings
  • Surface-finished components
  • Tight tolerance requirements
  • Long-term manufacturing schedules

Our team works directly with manufacturers to support production planning and finishing requirements throughout the manufacturing process.

Why Choose Aluminum Castings Company?

Aluminum Castings Company has supplied aluminum castings since 1964. Located in Galesburg, Illinois, our operation supports manufacturers across Illinois, the Midwest, and the United States with process-focused aluminum casting production and value-added manufacturing support.

Our manufacturing operation combines experienced foundry production with modern inspection and quality verification systems.

Capabilities include:

  • DISA automated molding
  • Air set molding systems
  • Shell core production
  • Cold box core manufacturing
  • In-house alloy verification
  • CNC machining support
  • CMM inspection
  • X-ray and non-destructive testing
  • Metallurgical control

Our facility operates multiple gas-fired aluminum melting furnaces capable of supporting a wide range of production requirements and casting sizes.

We manufacture aluminum castings using alloys including:

  • 319
  • 355
  • 356
  • 535
  • Almag 35

Custom alloy support may also be available depending on project requirements.

Our in-house spectrometer allows us to verify alloy chemistry and provide material certifications when required. Maintaining alloy integrity and process consistency helps support repeatable manufacturing quality throughout production runs.

In addition to casting production, we support value-added services designed to simplify production workflows and reduce outside vendor coordination.

How Are Aluminum Castings Prepared for Painting and Powder Coating?

Surface preparation is an important step before applying paint or powder coating to aluminum castings.

Cleaning and Surface Preparation

Before finishing begins, aluminum castings typically undergo cleaning and preparation processes to remove contaminants and prepare the surface for coating adhesion.

Preparation may include:

  • Grinding
  • Trimming
  • Surface cleaning
  • Deburring
  • Surface conditioning

Proper preparation helps improve coating consistency and long-term performance.

Machining and Dimensional Verification

If machining is required, aluminum castings may undergo CNC machining operations before finishing processes begin.

Machining capabilities include:

  • Drilling
  • Boring
  • Tapping
  • 3-axis machining
  • 4-axis machining
  • 5-axis machining

Inspection and dimensional verification help ensure the component meets required specifications before coating application.

Finishing Application

Depending on customer requirements, castings may then move into painting or powder coating processes.

The finishing process selected depends on:

  • Environmental exposure
  • Appearance requirements
  • Surface durability needs
  • Performance specifications
  • Application conditions

Finishing systems are selected based on the requirements of the final application and operating environment.

Painting & Powder Coating Support in Galesburg, Illinois

Aluminum Castings Company is located in Galesburg, Illinois and serves manufacturers nationwide. Our operation supports OEM customers throughout Illinois, the Midwest, and across the United States with aluminum casting production and value-added finishing support.

Manufacturers often partner with our team when they require:

  • Domestic aluminum casting production
  • Machined aluminum castings
  • Surface-finished components
  • Powder-coated aluminum castings
  • Prototype and repeat production support
  • Process-controlled manufacturing

Our Midwest location allows us to support industrial manufacturers across multiple sectors while maintaining direct communication and production oversight throughout manufacturing.

Frequently Asked Questions

1. Why are aluminum castings painted or powder coated?

Painting and powder coating help improve corrosion resistance, surface durability, and appearance consistency for aluminum castings used in industrial environments.

2. What is the difference between painting and powder coating?

Painting uses liquid coatings while powder coating applies dry powder material cured under heat for durable surface protection.

3. Are powder-coated aluminum castings durable?

Yes. Powder-coated aluminum castings are commonly used in demanding industrial and outdoor environments because of their surface durability and corrosion resistance.

4. Can aluminum castings be machined before finishing?

Yes. Aluminum castings are commonly CNC machined before painting or powder coating to achieve final tolerances and assembly requirements.

5. What industries use painted or powder-coated aluminum castings?

Industries including agriculture, transportation, heavy equipment, marine manufacturing, mining, and power generation commonly use finished aluminum castings.

Image Painting & Powder Coating Support

Request a Quote for Painting & Powder Coating Support

Aluminum Castings Company provides aluminum casting solutions for OEM manufacturers requiring aluminum sand casting production, machining support, and value-added finishing services.

From prototype development to repeat production manufacturing, our team supports industrial customers with dependable aluminum casting solutions designed for manufacturing consistency and industrial performance.

Request a quote today to discuss your aluminum casting and finishing project with Aluminum Castings Company.

REQUEST A QUOTE NOW

Your engineered aluminum casting solution starts here.

Call: 309-343-8910 | Email: sales@aluminumcastingscorp.com