Why is edge damage often not repairable and may require replacement?

• A. Edge chips can always be repaired with resin.
• B. Edge damage is often not repairable; evaluate for replacement due to risk of edge failure.
• C. It has no safety implications.
• D. It only affects aesthetics.

Answer: (B)

Edge damage is often not repairable because the edge of the windshield carries critical loads and is more prone to crack propagation. A resin repair can fill small surface cracks, but it cannot reliably restore the edge’s structural strength or ensure a perfect seal against weather and stresses. Because cracks at or near the edge can spread with normal driving stresses, temperature changes, or air pressure, attempting a repair may leave hidden damage that can fail suddenly. For safety, technicians assess edge damage and typically recommend replacement when the damage is at or very near the edge or when a crack compromises the edge area, rather than risking a partial fix that might not hold up.