Coating Course

Lesson 1 • Major Coating Categories

Surveys liquid, powder, and radiation-cured coatings. Connects category selection to substrate type and end-use requirements.

Lesson 2 • Coating Chemistry Basics

Introduces binders, solvents, pigments, and additives as the four core components. Explains how each component influences final film properties.

Lesson 3 • What Coatings Are and Do

Defines coatings by function: protection, decoration, and performance enhancement. Establishes the vocabulary used throughout the course.

Lesson 4 • Industry Sectors and Applications

Maps coating technology to automotive, aerospace, construction, and industrial sectors. Provides context for application-specific requirements covered later.

Lesson 1 • Plastic and Non-Metal Preparation

Addresses flame treatment, corona discharge, and adhesion promoters for plastics. Distinguishes preparation needs of non-metallic substrates from metals.

Lesson 2 • Chemical Cleaning and Pretreatment

Explains solvent wiping, alkaline cleaning, acid etching, and conversion coatings. Connects chemical pretreatment to improved adhesion and corrosion resistance.

Lesson 3 • Why Surface Preparation Matters

Establishes the direct link between surface cleanliness, profile, and coating performance. Introduces contamination types that cause adhesion failure.

Lesson 4 • Mechanical Preparation Techniques

Covers abrasive blasting, grinding, sanding, and wire brushing. Students match technique to substrate condition and required surface profile.

Lesson 1 • Electrostatic and Powder Application

Explains electrostatic attraction principles for liquid and powder coatings. Covers gun types, grounding requirements, and wrap effect management.

Lesson 2 • Dip, Flow, and Roll Coating Processes

Surveys automated immersion, curtain, and roll coating for high-volume production. Connects process selection to part geometry and throughput requirements.

Lesson 3 • Conventional and HVLP Spray

Explains air-atomized spray principles, gun setup, and pattern adjustment. Students calibrate equipment to minimize overspray and achieve target dry film thickness.

Lesson 4 • Brush and Roller Application

Covers brush types, roller nap selection, and stroke technique for uniform coverage. Identifies situations where manual application is preferred over spray.

Lesson 1 • Powder Coating Cure Cycles

Explains gel, flow, and crosslink stages specific to thermosetting powder coatings. Students set oven profiles to achieve full cure without overbake defects.

Lesson 2 • Thermal Cure and Oven Baking

Covers forced-air ovens, infrared panels, and induction heating for thermosetting coatings. Students calculate time-temperature profiles for full cure.

Lesson 3 • Physical Drying Mechanisms

Covers solvent evaporation and coalescence as the two physical drying pathways. Explains how temperature, humidity, and airflow affect drying rate.

Lesson 4 • UV and Radiation Curing

Introduces photoinitiator chemistry and UV lamp selection for radiation-cured coatings. Covers line speed, lamp intensity, and shadow-area limitations.

Lesson 1 • Appearance and Gloss Measurement

Covers gloss meters, distinctness of image, and color measurement with spectrophotometers. Appearance metrics are critical for automotive and architectural specifications.

Lesson 2 • Hardness, Flexibility, and Impact Resistance

Covers pencil hardness, König pendulum, mandrel bend, and impact tests. These tests confirm that the film meets mechanical performance specifications.

Lesson 3 • Adhesion and Cohesion Testing

Teaches cross-cut, pull-off, and tape adhesion tests to quantify film-to-substrate bond. Results guide reformulation and preparation process adjustments.

Lesson 4 • Dry Film Thickness Measurement

Covers magnetic, eddy-current, and ultrasonic gauges for measuring dry film thickness. Accurate measurement is the primary quality control checkpoint after application.

Lesson 1 • Corrosion-Related Film Failures

Covers rust creep, filiform corrosion, and cathodic disbondment in protective coatings. Failure analysis methods are used to identify the primary cause.

Lesson 2 • Defect Prevention and Process Control

Establishes process control checkpoints that prevent defects before they occur. Students build inspection plans using statistical process control concepts.

Lesson 3 • Adhesion and Delamination Failures

Examines intercoat delamination, lifting, and peeling linked to contamination or recoat timing. Proper diagnosis distinguishes adhesion from cohesion failure.

Lesson 4 • Application-Related Defects

Covers runs, sags, dry spray, and orange peel caused by incorrect application technique. Each defect is traced to a specific equipment or operator variable.

Lesson 1 • Corrosion Protection Mechanisms

Covers barrier, inhibitive, and sacrificial anode protection strategies. Students match the protection mechanism to the corrosion risk of the environment.

Lesson 2 • Coating System Architecture

Explains the primer, intermediate, and topcoat roles within a multi-coat system. Each layer is selected to contribute a specific protective or functional property.

Lesson 3 • High-Temperature Coating Systems

Covers silicone, ceramic, and inorganic zinc systems for elevated-temperature service. Thermal cycling and oxidation resistance are the primary selection criteria.

Lesson 4 • System Specification and Documentation

Teaches how to write a coating specification that defines materials, preparation, application, and inspection requirements. Specifications form the contractual basis for quality.

Lesson 1 • Fire and Explosion Prevention

Covers flammability limits, ignition source control, and grounding for solvent-borne coatings. Spray booth design and housekeeping practices are critical fire prevention measures.

Lesson 2 • Waste Management and VOC Reduction

Addresses solvent waste disposal, VOC emission controls, and waterborne conversion strategies. Environmental compliance reduces regulatory risk and operational costs.

Lesson 3 • Respiratory and Personal Protective Equipment

Specifies respirator types, cartridge selection, and fit testing for solvent and isocyanate exposure. Correct PPE selection is matched to the specific coating hazard.

Lesson 4 • Ventilation and Confined Space Safety

Explains local exhaust ventilation design and confined space entry procedures for coating work. Inadequate ventilation is the leading cause of solvent overexposure incidents.