What kind of adhesive is used for headlight sealant?
1 Answers
Headlight sealant uses silicone sealant. The following are specific requirements for headlight sealant: 1. High-temperature resistance: Headlight sealant is affected by the heat emitted by the bulb. It must maintain its bonding and sealing performance without change in high-temperature environments, while not releasing organic gases, causing fogging, or yellowing, which would affect appearance. 2. UV aging resistance: When exposed to ultraviolet rays from sunlight, the headlight sealant should not experience aging phenomena such as cracking in the adhesive layer. This requires the headlight sealant to have excellent UV aging resistance. 3. Waterproofing: Headlight sealant is also subjected to prolonged erosion by moisture and rainwater, so its sealing performance must not be compromised as a result.