Cert III Refinishing case studies
Cert III Refinishing · Put your knowledge to work in context.
AUR32420 Certificate III in Automotive Refinishing Technology is an Australian qualification for people who paint, refinish, repair and maintain painted surfaces on automotive vehicles, recreational vehicles and other vehicles in the automotive industry. It suits apprentices and trainee refinishers building a trade-level career, and experienced spray painters seeking formal recognition of skills such as substrate preparation, priming, colour matching and clear over base application. The Cert III Refinishing case studies are 5 cases and about 2,568 words.
1Booth Pressure Drop with a Two-Gun Demand
A two-booth shop runs a 7.5 kW screw compressor rated 900 L/min free air delivery, feeding a 500 L receiver and a refrigerated dryer rated 1,000 L/min. Two painters are spraying waterborne basecoat with HVLP guns at 2.4 bar at the gun, each consuming about 380 L/min.
535 words, about 3 min2Metallic Basecoat Mottling After a Panel Repair
A technician repairs a 300 mm dent on the right rear door of a silver metallic vehicle. The repair area is primed, blocked with P400, then P600, and sealed.
516 words, about 3 min3Clearcoat Runs on a Vertical Panel in a Cold Booth
A technician is clearcoating a full side of a van in a booth held at 16 degrees C because the heater is cycling poorly. The clearcoat is a 2K product with a 4:1 mix ratio and a 20-minute pot life at 25 degrees C.
510 words, about 3 min4Spray Gun Cleaning and Solvent Waste Decision
A shop uses a single gravity-feed HVLP gun for both solventborne primer and waterborne basecoat. At the end of each day the apprentice flushes the gun with the cheapest available solvent, blows it dry with shop air, and stores it in a cabinet.
491 words, about 2 min5Colour Mismatch on a Plastic Bumper Refinish
A technician refinishes a replacement front bumper cover on a dark blue metallic vehicle. The bumper is new thermoplastic olefin (TPO) and arrives with a factory e-coat.
516 words, about 3 min