PDR Techniques and Methods Flashcards
6 cards from real Paintless Dent Repair practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 PDR Techniques and Methods flashcards as text
What is the purpose of the 'knockdown' technique in PDR?
Answer: To reduce a high spot that has risen above the panel surface
The knockdown technique uses a knockdown tool to gently tap down high spots that form when surrounding metal rises above the correct panel level during repair.
How does PDR differ from traditional auto body repair for dents?
Answer: PDR preserves the original factory paint by working the metal back from behind
PDR preserves the vehicle's original factory paint finish by massaging the metal back into shape from behind the panel, eliminating the need for filler or repainting.
What is 'panel flex' and why is it important in PDR?
Answer: The natural springiness of a panel that helps or hinders dent removal
Panel flex is the natural springiness of body panels, and understanding it helps PDR technicians predict how the metal will respond to pressure during repairs.
Which PDR technique is preferred for repairing damage on aluminum panels versus steel?
Answer: Aluminum requires gentler, more controlled pressure due to its lower elasticity
Aluminum has lower elasticity and work-hardens more quickly than steel, requiring gentler, more controlled pressure and often specialized aluminum-compatible tools.
What is a 'bullseye' dent and what PDR challenge does it present?
Answer: A round dent with radiating stress lines that indicate the paint may be at risk
A bullseye dent has a circular shape with radiating stress lines, indicating the impact stretched the paint and metal significantly, raising the risk of paint cracking during repair.
When is PDR not a viable repair option?
Answer: When the paint is cracked, metal is creased beyond recovery, or the panel is rusty
PDR is not viable when the paint has cracked, when the metal has been creased so severely that it cannot return to shape, or when rust has compromised the panel's integrity.