The headlight dust cover sealing is usually sealed with snake glue.
Snake glue sealing steps
Use of tools, hair dryer (home can also be), scraper (you can not use the card, some of what merchants membership cards are available), snake glue (belongs to the hot glue, characterized by soft, sticky, sealing effect is good)
Clean up the dust above the dust cover.
Take out the snake glue and wrap it around the gap between the dust cover and the headlight.
Use the hot air from a hair dryer to blow on the snake glue.
After the snake glue softens, use a scraper to scrape off the snake glue and cover the gap between the headlight and the dust cover.
Note
1, clean dust cover dust can be cleaned with a clean rag, clean up after keeping dry, do not wet, or affect the viscosity of the glue, affecting the sealing.
2. Snake glue is relatively soft, you can use a little force to pull up the snake glue when winding, so that the snake glue wrapped more tightly.