How to Repair a Crack in a Car's Tail Light?
2 Answers
Prepare the necessary repair tools in advance, including glue, adhesive film, spray paint, and anti-stick gloves. After aligning the cracked parts, put on the gloves and use glue to bond the crack first. Be careful not to let the glue flow onto your hands to avoid burns. Before spraying, properly apply the masking film to cover all areas except the light cover to prevent overspray onto the car body. Once the masking film is in place, select a paint that matches the tail light color and begin spraying. Maintain a distance of 10-15cm during spraying to prevent dripping.
Last time my car's taillight had a crack, I found it quite fun to DIY the repair. The crack was located at the lower right corner, about two centimeters long. I first bought some transparent epoxy resin adhesive, cleaned the surface of the lens with anhydrous alcohol to remove grease, then carefully squeezed the adhesive into the crack to fill it up, and waited a full day for it to cure and dry. After the repair, the light worked normally without any water leakage, saving me a few hundred bucks on a new lens. However, this method is only suitable for small cracks—larger ones might not hold with adhesive. Cracks can let rainwater seep in, causing short circuits and burning out the bulbs, and they can also dim the light, making nighttime driving dangerous. I regularly check my lights to ensure they're bright enough and am careful not to bump into walls when parking. While DIY repairs give a sense of accomplishment, in the long run, replacing the part is more durable.
