In-House Powder Coat Paint Process

PB-44-Hammond-FourProcessPainting-400.jpg

April 28, 2021

Hammond Manufacturing uses a four step process for painting their enclosures, enclosure racks and rack mounts, which includes a four-stage pre-wash, bakes within specialized ovens for metal sheets, and application of a powder coat, all of which together reduces material waste by a significant amount according to Hammond.

Process Step # 1: Four (4)-Stage Pre-Wash

Alkaline Cleaner

Cleans steel surfaces of anti-corrosion oils, added by the steel producer.

De-Ionized Water Rinse

Lower levels of dissolved solids makes the water a better solvent to wash away remaining residue and alkaline cleaner.

Nano-Ceramic Conversion Coating

Helps with paint adhesion and corrosion protection while reducing the environmental impact.

De-Ionized Water (Halo Rinse)

Like the streak-free rinse in a  car wash, the halo rinse is the final rinse to remove any remaining contaminants from previous stages.

Process Step #2: Dry-Off Oven

Hammond Manufacturing’s dry-off oven ensures parts are dry prior to the powder coat application. If water is present during powder application, water marks and imperfections will appear in the paint finish.

Process Step #3: Electrostatic Powder-Coat Application

Electrostatic powder-coat is achieved by applying an electrostatic charge to the powder particles which are attracted to a grounded part. Spray guns are used to apply the paint using both automatic and manual techniques.

Process Step #4: Powder Coat Bake Oven

Hammond Manufacturing’s bake oven cures the powder into a seamless coating. The bake oven consists of a 33ft infra-red oven booster that brings the part up to the required cure temperature. The remaining 179ft is a convection bake oven that maintains a steady baking temperature of 400 degrees.

More About the Powder Coat Process

Is the Finish Rust-Proof?

When applied to mild steel and installed in a non-corrosive environment, the powder coat paint process holds up better than wet paint. UL/CSA Type 4 products are subjected to a 600 hour salt spray test.

The Nano-ceramic coating applied during the wash process helps with corrosion protection. In addition, a fully painted product resists external elements from corroding the base material.

Powder coated products are more resistant to diminished coating quality from impacts, moisture, chemicals, ultraviolet light and extreme weather conditions.

What is the Powder?

The main ingredient of the powder is a polymer resin in addition to curing agents, pigments, leveling agents, flow modifiers, and other additives.

During the baking process the polymer resin powder melts coating the sheet metal and binds the polymer into a tighter and denser finish.

Powder coating provides a more durable and longer lasting finish compared to conventional wet painting. Also, powder coating is typically a one-coat finish.

How Durable is the Finish?

To determine how durable the paint finish is and to ensure a quality finish, Hammond completes a “cross hatch” test. 

In accordance to the ASTM Standard D3359 procedure, the test is performed by scribing the paint finish in a cross hatch pattern followed by  applying a pressure sensitive tape and pulling the tape from the surface. The cross hatch grid pattern is examined with a magnify glass to determine the paint adhesion.

A pass is determined if the edges of the cuts are completely smooth; none of the squares of the grid pattern are detached.

Environmental Benefits

Paint Reclaim

Every year, Hammond reclaims 85% of paint used. Our paint process includes the ability to re-use (reclaim) paint that misses the product in the paint booth. This process keeps 146,200 kg of waste paint from ending up in landfill.

Water Treatment

Approximately 98% of water used in our paint process is recovered and reused. The remaining 2% is treated in-house to exceed municipal standards.

No Chemical Exposure

Unlike wet spray-painting environments, our powder coat paint process does not off-gas any fumes or chemical exposure making it ideal for education, healthcare and office applications.

Source

Related Articles


Changing Scene

  • Tri-Mach Announces the Purchase of an Additional 45,000 sq ft. Facility

    Tri-Mach Announces the Purchase of an Additional 45,000 sq ft. Facility

    Recently, Tri-Mach Inc. was thrilled to announce the addition of a new 45,000 sq ft. facility. Located at 285 Union St., Elmira, ON, this facility expands Tri-Mach’s capabilities, allowing them to better serve the growing needs of their customers. Positioning for growth, this additional facility will allow Tri-Mach to continue taking on large-scale projects, enhance product performance testing, and provide equipment storage for their customers. Read More…

  • HELUKABEL Group Builds New Facility for Automation Cable Solutions

    HELUKABEL Group Builds New Facility for Automation Cable Solutions

    The HELUKABEL Group recently announced it is going to build a new facility in Haan, Germany that will house its robotic dress pack and drag chain system subsidiaries under one roof. The new building will also serve as the headquarters of HELUKABEL’s Rhine-Ruhr sales branch, and is planned to be completed by 2025. Robotec Systems’ core business is robotic dress pack solutions and has been a HELUKABEL subsidiary since 2012 operating out of Duisburg, a suburb of Duesseldorf in northwest Germany. Read More…


Sponsored Content
Fire Protection for Lithium-ion Battery Energy Storage Systems

Lithium-ion storage facilities contain high-energy batteries combined with highly flammable electrolytes. In addition, they are prone to quick ignition and explosion in a worst-case scenario. Such fires can have a significant financial impact on organizations. Rapid detection of electrolyte gas particles and extinguishing are the key to a successful fire protection concept. Since December 2019, Siemens has been offering a VdS-certified fire protection concept for stationary Li-ion battery storage systems.

Click HERE to learn more.


For a Multiplied Value Unified

PB-62-Excelpro-MultipliedValue-400.jpg

During the last few years, the Excelpro Group has welcomed AIA Automation, Envitech Automation and Conrad Lavoie Electrical, all of which have become ‘Member of the Excelpro Group’.

It was with great excitement that in November of 2022, Excelpro announced that these three companies officially became Excelpro. This decision is part of a strategy to enhance the Excelpro Group’s brand in its market.

These companies already collaborate on various client projects. This merger brings together the complementary strengths of the employees and ensures a global synergy of the activities throughout the Group.

Read More


Service Wire Co. Announces New Titles for Key Executives

Bruce Kesler and Mark Gatewood have been given new titles and responsibilities for Service Wire Co.

Bruce Kesler has assumed the role of Senior Director – Business Development. Bruce will be responsible for Service Wire’s largest strategic accounts and our growing Strategic Accounts Team.

Mark Gatewood has been promoted to the role of Vice President – Sales & Marketing. In this role, Gatewood will lead the efforts of Service Wire Company’s entire sales and marketing organization in all market verticals.

Read More


Modern Niagara Partners with Global Sustainability Platform Worldfavor

Worldfavor is a global sustainability platform, digitizing and automating the collection, calculation, aggregation and visualization for analysis and reporting of ESG data. Now, Worldfavor is proud to welcome Modern Niagara as a new customer. Modern Niagara is the first Canadian construction company to partner with Worldfavor.

“Worldfavor was founded to be the best platform for sharing, accessing and gaining insights from corporate ESG information. Worldfavor’s mission is to make sustainability mainstream and with that we offer solutions to accelerate sustainability through the value chain. Modern Niagara is the first Canadian construction company to partner with Worldfavor. 

Read More


JMP Parent Company, CONVERGIX Acquires AGR Automation, Expanding Global Reach

Convergix Automation Solutions has completed the acquisition of AGR Automation (“AGR”), a UK-based provider of custom, high-performance automation design and systems integration primarily to the life sciences industry.

Following Convergix’s acquisitions of JMP Solutions in August 2021 and Classic Design in February 2022, AGR marks the third investment in Crestview’s strategy to build Convergix into a diversified automation solutions provider targeting the global $500+ billion market, with a particular focus on the $70 billion global systems integration and connectivity segments. Financial terms of the transaction were not disclosed.

Read More


Latest Articles