Paintless Dent Repair Lighting and Visibility in PDR 2 — Questions and Answers
Question 1: What is the advantage of a portable PDR light system over a fixed shop light?
- Portable lights are always brighter than fixed lights
- Portable systems allow the technician to work on-site at dealerships, insurance lots, and mobile service calls (Correct answer)
- Portable lights are required by PDR certification standards
- Fixed lights cannot illuminate horizontal panels
Correct answer: Portable systems allow the technician to work on-site at dealerships, insurance lots, and mobile service calls
Portable PDR lighting enables mobile technicians to work in the field at dealerships, insurance storage lots, or customer locations, greatly expanding business opportunities beyond a fixed shop.
Question 2: How does sunlight affect PDR visibility compared to artificial PDR lighting?
- Sunlight is always better than artificial lighting for PDR
- Sunlight is unpredictable, creates harsh shadows, and moves as the day progresses, making consistent visualization difficult compared to controlled artificial PDR lighting (Correct answer)
- Sunlight and artificial lighting provide identical visibility
- Sunlight cannot illuminate dents on any vehicle
Correct answer: Sunlight is unpredictable, creates harsh shadows, and moves as the day progresses, making consistent visualization difficult compared to controlled artificial PDR lighting
While natural light can help visualize some damage, it is inconsistent, shifts with time and weather, and creates shadows that complicate PDR work, making controlled artificial PDR lighting more reliable.
Question 3: What is 'fluorescent lighting reflection technique' in PDR?
- Using chemical fluorescent dye on panels
- Using shop fluorescent tube lights as reflection sources by positioning the vehicle so tube reflections run across the repair area (Correct answer)
- A special PDR tool coating technique
- A method for detecting paint overspray
Correct answer: Using shop fluorescent tube lights as reflection sources by positioning the vehicle so tube reflections run across the repair area
Many shops use existing fluorescent tube lights as improvised reflection boards by carefully positioning the vehicle so the tube reflections align with the repair area, revealing dent distortions.
Question 4: How does a PDR technician use backlighting for working on complex curved surfaces?
- Backlighting is only used on flat horizontal panels
- Placing a light source behind the panel (inside the door or quarter panel) allows the light to silhouette dents and reveal subtle surface variations not visible with front lighting alone (Correct answer)
- Backlighting heats the metal to aid repair
- Backlighting is used to cure glue tab adhesive
Correct answer: Placing a light source behind the panel (inside the door or quarter panel) allows the light to silhouette dents and reveal subtle surface variations not visible with front lighting alone
Placing a light inside a panel cavity allows the light to shine through the metal and silhouette dents from the back, revealing subtle damage that front-facing reflection boards might miss.
Question 5: What is the purpose of 'glare reduction' in PDR lighting setups?
- To make the vehicle look shinier for customer presentation
- Controlled glare highlights dents but excessive random glare obscures them; glare reduction focuses the useful reflection and eliminates confusing stray light (Correct answer)
- Glare reduction is only needed for photography, not actual PDR
- Reducing glare decreases the effective range of PDR tools
Correct answer: Controlled glare highlights dents but excessive random glare obscures them; glare reduction focuses the useful reflection and eliminates confusing stray light
While a specific controlled reflection reveals dents, excessive random glare from surrounding light sources confuses the view; positioning lights to minimize stray glare keeps the working reflection clear and useful.
Question 6: How do PDR technicians working outdoors compensate for varying sunlight conditions?
- They only work indoors and never outdoors
- They use portable tents, canopies, or position the vehicle in shade to create controlled lighting conditions, then supplement with portable LED boards (Correct answer)
- Outdoor PDR does not require any special lighting adjustments
- They wait for cloudy days exclusively
Correct answer: They use portable tents, canopies, or position the vehicle in shade to create controlled lighting conditions, then supplement with portable LED boards
Outdoor PDR technicians use canopies, shade, or vehicle positioning to block direct sunlight and then use portable LED reflection boards to create consistent, controllable working light.
Paintless Dent Repair Lighting and Visibility in PDR 2
What is the advantage of a portable PDR light system over a fixed shop light?