Apr 18, 2024  
2018-2019 Course Catalog 
    
2018-2019 Course Catalog [ARCHIVED CATALOG]

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CRR 202 - Plastic Repair

Credits: 3
Lecture Hours: 2
Lab Hours: 2
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
The wide variety of solid plastics, flexible panels, plastic compounds and reinforced plastic panels now used in automobile manufacturing require separate repair procedures. Repair, replacement and refinishing of the substrates will be studied in classroom and the lab.
Prerequisite: CRR 841  
Competencies
  1. Identify and take necessary precautions with hazardous operations and materials according to federal, state, and local regulations (HP-I).
    1. Identify safety and personal health hazards according to OSHA guidelines and the “Right to Know Law?” (HP-I).
    2. 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 regulations (HP-I).
    3. 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 regulations (HP-I)
    4. 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.) (HP-I)
  2. Identify type(s) of plastic, analyze damage, and determine repair process
    1. Identify the types of plastics; determine reparability (HP-I).
    2. Identify the types of plastic repair procedures; clean and prepare the surface of plastic parts (HP-I)
  3. Demonstrate appropriate surface preparation for composite repairs
    1. Demonstrate and use proper cleaning methods and techniques
    2. Select and use recommended abrasives
    3. Demonstrate and use backing panels (build when applicable) or prepare back side of repair
    4. Use recommended adhesion promoter (when applicable).
  4. Repair composite panels, flexible and rigid using approved methods and materials
    1. Remove paint finish (HP-I) (V-groove or U-groove).
    2. Replace or repair rigid and flexible plastic panels (HP-G).
    3. Remove or repair damaged areas from rigid exterior composite panels (HP-G)
    4. Replace bonded rigid exterior composite body panels; straighten or align panel supports (HP-G).
    5. Using a plastic welder (airless) demonstrate repairs on rigid and flexible plastics
    6. Using adhesives, demonstrate repairs to rigid and flexible plastics/composites.
    7. Demonstrate repairs to fiberglass reinforced composites
    8. Apply two component finishing filler to minor surface imperfections (HP-I).
    9. Dry sand area to which two-component finishing filler has been applied (HP-I).
  5. Demonstrate surface preparation for primers.
    1. Determine and use correct abrasives for finishing of the repair area
    2. Determine and use correct abrasives for featheredging of the repair area
    3. Determine use of adhesion promoters
    4. Mix primer, primer surface or primer sealer (HP-I).
    5. Apply primer onto surface or repaired area (HP-I).
    6. Explain removal of damaged sheet molded compound (SMC) panels
    7. Demonstrate repair of damaged sheet molded compound (SMC) panel
    8. Explain removal of damaged bulk molded compound panel
    9. Explain repair of damaged bulk molded compound panel
    10. Explain partial panel replacement of bulk molded compound
    11. Explain partial panel replacement of sheet molded compound (SMC)
  6. Demonstrate proper refinishing techniques for composites
    1. Dry or wet sand area to which primer-surfacer has been applied (HP-I).
    2. Remove, with a tack rag, any dust or lint particles from the area to be refinished (HP-I).
    3. Apply suitable sealer to the area being refinished when sealing is needed or desirable (HP-I).
    4. Refinish rigid, semi-rigid and flexible plastic parts (HP-G).
    5. Identify the types of rigid, semi-rigid or flexible plastic parts to be refinished; determine the materials, preparation, and refinishing procedures (HP-I).
    6. Apply single stage topcoat (HP-I).
    7. Apply basecoat/clearcoat for overall refinishing (HP-I).
    8. Denib, buff, and po9lish finishes where necessary (HP-I).
  7. Apply finish color coats to plastic
    1. Explain refinish of an interior plastic part
    2. Demonstrate refinish of an interior plastic part
    3. Demonstrate retexture exterior plastic part
    4. Identify the types of rigid plastic parts to be refinished
    5. Identify the correct procedure to refinish rigid plastic parts
    6. Identify the types of flexible plastic parts to be refinished
    7. Identify the correct procedure to refinish flexible plastic parts
    8. Demonstrate refinish technique to rigid plastic parts
    9. Demonstrate refinish technique to flexible plastic parts



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