Should I Use Glass Glue or Sealant for Sunroof Leaks?
2 Answers
Use sealant for sunroof leaks. The main causes of sunroof leaks are aging or improperly sealed rubber gaskets, which require replacement. Using glass glue would permanently seal the sunroof shut. Here are some related tips: Regular Cleaning: After 2-3 months of use, the sunroof needs cleaning to remove dust. Fully open the sunroof and wipe the dust off the rails with a clean, soft cloth. Then apply lubricant to the sunroof rails and transmission pipes. Preventing Rubber Gasket Aging: Before long-term parking or if the sunroof won't be used for an extended period, apply talcum powder or a specialized rubber lubricant to the gaskets around the sunroof and perform a thorough cleaning. This prevents natural aging of the gaskets due to prolonged chemical changes.
I've fixed the sunroof leak issue on my car several times. At first, I thought I could just use some ordinary glass glue to seal it, but the rainwater ended up soaking and damaging the interior. After a few attempts, I realized glass glue doesn't work well—it's fine for regular windows, but sunroofs are constantly exposed to movement and temperature changes, causing the glue to crack or peel quickly. Later, I switched to automotive-grade sealant, which I bought online for about ten yuan a tube. Applying it to the leaking seams lasts much longer. However, this is just a temporary fix. The first step should be cleaning the sunroof's drainage holes, as clogged tubes are the most common cause. If you're doing it yourself, use a thin wire to clear the tubes and then apply the sealant for a reliable fix. For severe leaks, it's best to consult a professional to check if the sealing strips are worn out, to avoid unnecessary expenses on interior repairs later.
