AirSprayTech Academy — Series 13

Portable Plural-Component Coating Systems for Contractors

From Material Supply and Ratio Control to Application and Final Acceptance

A practical, contractor-focused certificate program covering the selection, setup, calibration, operation, troubleshooting, maintenance, and quality control of portable plural-component coating equipment used on commercial and industrial jobsites.

Plural-Component Application Is a Controlled Process

A plural-component system must do more than pump two materials toward a spray gun. It must deliver components A and B at the specified ratio, temperature, pressure, and flow rate—and maintain those conditions throughout application.

An incorrect ratio, blocked passage, cold component, worn pump, unsuitable mixer, pressure imbalance, or poor shutdown procedure can leave behind material that never develops its intended properties. The failure may not be visible until the coating is already in service.

Contractor and Jobsite Focus

This program concentrates on portable and mobile plural-component systems used by contractors in the field. It addresses equipment transported to a project, supplied from pails, drums, or totes, and operated under changing jobsite and environmental conditions.

Stationary factory systems used for automated OEM 2K and 3K product finishing will be addressed separately in AirSprayTech Academy Series 14.

Applications and Materials Covered

What the Course Teaches

• Plural-component terminology, chemistry, ratios, and reaction control
• How to read product data sheets, equipment manuals, and project specifications
• Selecting a proportioner for the material and production requirement
• Supplying materials from pails, drums, totes, and transfer pumps
• Heating, recirculation, viscosity control, and heated-hose operation
• Ratio verification, calibration, pressure balance, and output testing
• Mix manifolds, static mixers, impingement mixing, guns, and spray tips
• Mobile rig utilities, generators, compressors, ventilation, and jobsite setup
• Startup, application, shutdown, flushing, storage, and preventive maintenance
• Recognizing off-ratio material and documenting application quality

24-Article Certificate Course

1. Understanding Portable Plural-Component Coating Systems
2. Component A, Component B, Mix Ratios, and Stoichiometry
3. Pot Life, Working Time, Gel Time, Cure, and Reaction Temperature
4. Plural-Component Materials and Contractor Applications
5. Reading Product Data Sheets, Manuals, and Project Specifications
6. How Portable Proportioning Equipment Works
7. Selecting the Correct Proportioner for the Material and Project
8. Pails, Drums, Totes, Feed Pumps, and Material Supply
9. Material Conditioning, Agitation, Temperature, and Viscosity
10. Primary Heaters, Heated Hoses, Recirculation, and Temperature Control
11. Proportioning Pumps, Ratio Control, and Pressure Balance
12. Filters, Valves, Gauges, Sensors, and Protective Controls
13. Mix Manifolds, Static Mixers, and Impingement Mixing
14. Plural-Component Spray Guns, Chambers, Tips, and Nozzles
15. Building a Safe and Productive Mobile Plural-Component Rig
16. Hose Selection, Pressure Ratings, Connections, Grounding, and Bonding
17. Calibration, Ratio Verification, Output Testing, and Records
18. Jobsite Setup, Prestart Inspection, Priming, and Startup
19. Pressure, Temperature, Spray Pattern, and Application Technique
20. Coverage, Film Thickness, Recoat Windows, and Cure Verification
21. Recognizing and Correcting Off-Ratio Material
22. Shutdown, Flushing, Pressure Relief, and Material Storage
23. Troubleshooting and Preventive Maintenance
24. Safety, Quality Control, Documentation, and Final Acceptance

Technical Standards and Industry Resources

Applicable standards and industry resources will be identified by name and number within the articles where they apply. References may include:

• OSHA requirements for respiratory protection, hazardous materials, pressure equipment, and construction safety
• NFPA 33 requirements for spray application using flammable or combustible materials
• AMPP and SSPC surface-preparation and protective-coating guidance
• ASTM D4414 for wet-film-thickness measurement
• ASTM D7091 for nondestructive dry-film-thickness measurement on metal
• ASTM D4541 and ASTM D7234 for pull-off adhesion testing
• Manufacturer manuals, product data sheets, safety data sheets, and approved application procedures

Manufacturer-Neutral Instruction

The operating principles taught in this course apply across professional plural-component equipment. Equipment from WAGNER, Graco, WIWA, Sames, and other manufacturers may be discussed when a specific design provides a useful technical example.

AirSprayTech represents WAGNER Industrial equipment commercially. That relationship will be disclosed whenever relevant. Course instruction is intended to remain technically accurate, manufacturer-neutral, and useful to contractors regardless of the equipment brand they operate.

Who Should Take This Course?

• Industrial and commercial coating contractors
• Plural-component equipment operators and applicators
• Crew leaders, foremen, and field supervisors
• Equipment technicians and maintenance personnel
• Estimators, project managers, and quality-control personnel
• Contractors considering the addition of plural-component application capabilities

Certificate Program

Complete all 24 articles and pass the final course assessment to become eligible to request an AirSprayTech Academy Certificate of Completion.

The course is free to study. The certificate recognizes completion of this educational program. It does not replace manufacturer equipment training, approved-applicator status, trade licensing, OSHA training, respiratory protection qualification, project-specific certification, or supervision by a qualified employer.

Professional responsibility: Always follow the current project specification, coating manufacturer's product data sheets and safety data sheets, equipment manufacturer's operating instructions, approved application procedures, applicable regulations, and employer safety program. Never exceed the pressure, temperature, or material limitations of any component in the system.

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