What kind of glue is used to repair car taillight cracks?
2 Answers
AB glue can be used to temporarily repair car taillight cracks. Additional information is as follows: 1. Ensure good sealing during repair: Especially to prevent dirt and damage to the reflector coating. When replacing bulbs and diffuser glass, avoid touching the lens with fingers to prevent sweat or oil marks that could dull the reflector and reduce reflection efficiency. 2. Handling car lens: If there is dust on the reflector, it can be blown off with compressed air. For stains, gently clean with a cleaning swab dipped in hot water. The diffuser glass should be correctly installed according to specifications to prevent loosening or displacement, keeping the prism vertical. 3. Regular inspection: Generally, there are positioning devices or left/right marks on the glass. Regularly check and adjust the headlight beam to ensure the headlight's illumination distance meets requirements, with both beams aligned vertically.
As a veteran mechanic with over a decade of experience, when encountering taillight cracks, I first assess the gap size. For small cracks, I recommend using automotive-grade transparent epoxy adhesive—it dries quickly, offers high hardness, and withstands temperatures up to 120°C. Before application, thoroughly clean the lamp housing surface, preferably with alcohol to remove grease, otherwise the bond won't hold. Apply the adhesive sparingly—squeeze a thin bead along the crack and smooth it slowly, remembering to wear gloves to avoid skin contact. Initial setting occurs in 30 minutes, with full curing achieved in 24 hours, delivering near-OEM results. However, I must caution that cracks exceeding 2cm are better addressed by replacing the lens entirely for safety, as water leakage causing electrical shorts would create bigger headaches.
