Watch how our advanced conveyor system delivers consistent, superior quality finishes for automotive, defense, and industrial applications.
At Milton Powder Coating, our advanced conveyor system and ISO 9001 certified processes ensure every part receives the same exceptional treatment—from the first piece to the last. Our facility is optimized for medium production runs (50-10,000 pieces), providing the efficiency of automated systems with the attention to detail your project demands.
Step 1: Receiving & Inspection
Quality Starts Here
Every project begins with a thorough inspection and documentation process. Our team reviews your specifications, verifies part quantities, and identifies any special handling / masking requirements, and packaging requirements. We assess the substrate material, existing coatings, and surface conditions to determine the optimal preparation method.
What We Check:
Parts and material types are verified to the print, surface condition and contamination, previous coating removal requirements, special masking or fixture needs, color specifications by RAL # or custom match.
Step 2: Surface Preparation
The Foundation of Durability
Proper surface preparation is critical to coating performance. Our multi-stage cleaning process is equipped with a closed loop chemical concentration system.  Tanks are equipped with probes that perform real-time monitoring and adjustments eliminating significant chemical concentration variation during production. Properly maintained tanks effectively remove contaminants, create an optimal surface profile, and ensures maximum adhesion for long-lasting finishes.
Preparation Methods:
Degreasing - Removes oils, lubricants, and surface contaminants
Chemical Cleaning - Multi-stage wash system for thorough cleaning
Chemical Pretreatment - Iron phosphate or other conversion coatings enhance corrosion resistance
Media Blasting - Creates proper surface profile for optimal adhesion (when required) Masking - Precision masking protects threads, holes, and surfaces that require no coating
Why This Matters:
Even the best powder coating will fail if applied to an improperly prepared surface. We don't cut corners on prep work.
Step 3: Conveyor System Loading
Efficient, Organized Production
Parts are carefully loaded onto our advanced conveyor system using specialized fixtures and hanging methods. Proper loading ensures complete coverage, prevents contact marks, and maximizes oven capacity / throughput.  Our process design consistently outperforms powder systems that apply coatings in a stop-stage process and a single stage batch cure oven.
Our Conveyor Advantages:
• Consistent part movement through all process stages
• Optimized for medium production runs
• Reduced handling and potential for damage
• Precise timing control for each process stage
• Even heat distribution during curing cycle.  Specialized profiles for heat resistant coatings and sensitive substrates
Step 4: Powder Application
Electrostatic Coating Technology
Conveyed through the filtered spray booth, certified technicians apply powder using electrostatic spray guns. The powder particles receive an electrical charge, causing them to attract to the grounded metal parts and wraparound edges and recesses for complete coverage.
Application Process:
• Parts enter our enclosed powder spray booth
• Electrostatically charged powder particles are sprayed onto parts
• Powder wraps around part geometry for complete coverage
• Thickness is controlled for consistent mil build
Coating Options:
• Thousands of standard colors by RAL number
• Various finishes: gloss, satin, matte, textured
• Specialized formulations: heat resistant coatings up to 1200°F, CARC coatings IAW MIL-DTL-53072
Step 5: Curing Process
Heat-Activated Bonding
Coated parts travel through our precision curing ovens where carefully controlled heat causes the powder to melt, flow, and chemically cross-link into a durable finish. Our oven heat distribution has been adjusted throughout the cure cycle to obtain the optimum heat up ramp and hold temperature
Curing Specifications:
• Temperature range: 350-400°F (standard applications)
• Precise temperature control in multi-zone ovens
• Monitored cure times for complete cross-linking
• Even heat distribution for consistent finish quality. Specialized profiles for heat resistant coatings and sensitive substrates
The Result:
A tough, durable coating that's chemically bonded to the metal surface—far superior to conventional paint.
Step 6: Cooling & Inspection
Powder process & Quality verification
Parts exiting the cure oven are demasked during the cooling process followed by final QC inspection. Each production run is preceded by a “Q” retain panel processed through the production process for performance testing. Film build, adhesion, gloss, and final cure of the production is verified.
Quality Verification
In addition to the performance testing, a visual inspection is performed on 100% of all coated parts. Production date, quantity produced, product code, and batch# are recorded
Our QC Process:
• Visual inspection for finish quality and coverage
• Thickness measurement verification
• Color and gloss measurement (when specified)
• Adhesion testing on process retain panels
• Documentation of all test results
ISO 9001 Certification:
Our quality management system ensures consistent processes, complete traceability, and continuous improvement.
Step 7: Packaging & Shipping
Protected Delivery
Finished parts are carefully packaged to prevent damage during shipping. Our complete packaging facility can accommodate special requirements including custom crating, protective wrapping, and labeled packaging for direct-to-line delivery.
Logistics Capabilities:
• Custom packaging for fragile or large components• Protective wrapping and boxing
• Palletizing and crating services
• Direct delivery throughout Great Lakes region. Coordination with your preferred carriers
• Quick turn pickup available (Detroit Metro)
• 2-4 day delivery across our service region
Coating Performance Benefits
Advanced Conveyor System
Our conveyor system provides consistent movement through each process stage, ensuring every part receives identical treatment.
Climate Control
Temperature and humidity-controlled environments ensure optimal coating application and curing.
Material Efficiency
Our reclaim systems capture and reuse overspray, achieving 95%+ material utilization.
High-Build Applications
Heavy-duty coatings up to 20 mils thickness for maximum protection of high-value equipment.
Every batch is tracked through our quality management system with complete documentation including:
• Incoming inspection records
• Process parameter logs
• Coating batch numbers and certifications
• Quality control test results
• Final inspection reports
Specialized Capabilities
• ITAR certified facility and processes
• CARC coating applications (MIL-PRF-32348)
• MIL-SPEC powder coatings (MIL-PRF-24712B)
• Complete documentation for government contracts
• Secure handling of sensitive components
• Heat resistant coating formulations up to 1200°F
• Specialized cure cycles for optimal performance
• Testing verification for temperature requirements
• Oven capacity for parts up to [XX feet in length]
• Custom fixturing for oversized components
• Heavy-duty conveyor system
Why Powder Coating Outperforms Liquid Paint
• Coating thickness measurement
• Adhesion testing (ASTM D4541)
• Visual inspection criteria
• Color and gloss verification
• Salt spray testing (ASTM B117) - 500+ hours standard
• Chemical resistance testing
• Impact resistance testing
• Flexibility testing
• High-temperature performance validation
• Complete batch traceability
• Coating material certifications
• Test results and reports
• Certificates of conformance
Contact our team for more information