Mar 28, 2024  
2018-2019 Course Catalog 
    
2018-2019 Course Catalog [ARCHIVED CATALOG]

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CRR 841 - Principles of Refinishing

Credits: 5
Lecture Hours: 3
Lab Hours: 4
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
This course will give the student an overall understanding of the complexities of today’s auto refinishing. Developing industry standard preparation habits and spray painting skills with various chemicals will be studied.
Competencies
  1. Identify and take necessary precautions with hazardous operations and materials according to federal, state, and local regulations
    1. Identify safety and personal health hazards according to OSHA guidelines and the Right-to-know Law
    2. Demonstrate understanding of isocyanate absorption
    3. Select and use the NIOSH approved personal sanding respirator. Inspect condition and ensure fit and operation. Perform proper maintenance in accordance with OSHA Regulation 1910.134 and applicable state and local regulation
    4. Select and use the NIOSH approved (Fresh Air Make-up System) personal painting/refinishing respirator system. Perform proper maintenance in accordance with OSHA regulation 1910.134 and applicable state and local regulation
    5. Select and use the proper personal safety equipment for surface preparation, spray gun and related equipment operation, paint mixing, matching and application, paint defects, and detailing (gloves, suits, hoods, eye and ear protection, etc.)
    6. Inspect spray environment to ensure compliance with federal, state and local regulations, and for safety and cleanliness hazards
  2. Inspect, clean, and determine condition of spray guns and related equipment (air hoses, regulators, air lines, air source, and spray environment)
    1. Check and adjust spray gun operation for HVLP (high volume, low pressure) or LVLP (low volume, low pressure) guns
    2. Set-up (fluid needle, nozzle, and cap) adjust, and test spray gun using fluid, air, and pattern control valves
  3. Apply two-component finishing filler to minor surface imperfections
    1. Dry sand area to which two-component finishing filler has been applied
    2. Apply suitable metal treatment or primer in accordance with total product systems
    3. Mask and protect other areas that will not be refinished
    4. Mix primer, primer-surface or primer sealer
    5. Apply primer onto surface or repaired area
    6. Dry or wet sand area to which primer-surface has been applied
  4. Apply suitable sealer to the area being refinished when sealing is needed or desirable
    1. Remove dust from area to be refinished, including cracks or moldings of adjacent areas
    2. Remove, with a tack rag, any dust or lint particles from the area to be refinished
    3. Clean areas to be refinished using a final cleaning solution
    4. Scuff sand to remove nibs or imperfections from a sealer
  5. Apply finish using appropriate spray techniques for the finish being applied
    1. Shake, stir, reduce, catalyze/activate, and strain paint
    2. Apply single state topcoat
    3. Apply basecoat.clearcoat for overall refinishing
    4. Denib, buff, and polish finishes where necessary
  6. Describe irregular paint conditions
    1. Identify a dry spray appearance in the paint surface; determine the cause(s) and correct the condition
    2. Identify overspray; determine the causes(s) and correct the condition
    3. Identify orange peel; determine the causes(s) and correct the condition
    4. Identify sags and runs in paint surface; determine the causes(s) and correct the condition
    5. Identify sanding marks (sandscratch swelling); determine the causes(s) and correct the condition
    6. Identify contour mapping (shrinking and splitting) while finish is drying; determine the causes(s) and correct the condition
    7. Identify the presence of fish-eye (crater-like openings) in the finish; determine the causes(s) and correct the condition
    8. Identify the clouding (mottling and streaking in metallic finishes); determine the causes(s) and correct the condition
    9. Identify dirt or dust in the paint surface; determine the causes(s) and correct the condition
    10. Identify poor adhesion; determine the causes(s) and correct the condition
  7. Dispose of waste materials properly
    1. Discuss proper disposal methods of both filters
    2. Demonstrate proper use of thinner recycler
    3. Demonstrate use of appropriate material
    4. Apply tape appropriately
  8. Apply color coats to panel
    1. Follow manufacturer’s specifications for paint application
    2. Use proper sequencing of applying color coat to panel
    3. Determine blend area
  9. Dispose of waste materials properly



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