Which sealant to use to put around A/C drain hose?

2008 CHEVROLET MALIBU
190,000 MILES • 2.4L • 6 CYL • 2WD • AUTOMATIC
Avatar
C283
  • MEMBER
  • 12 POSTS
I need to put sealant around the car's A/C drain hose, but it is right above the heat shield. I got a JB weld black gasket sealant. It is 500 degrees. I just was wondering if I needed a better sealant there that would be safe to use.
Aug 8, 2022 at 6:08 AM
Advertisement
Avatar
BORIS K
  • ✓ASE Certified Mechanic
  • 836 POSTS
  • ASE Certified Mechanic
Hello,

The A/C drainpipe is usually fitted to the vehicle floor using a rubber grommet.
Exhaust temperatures at the heat shield are unlikely to exceed 150
200 degrees C.
The sealant you are planning on using will be up to the job.

Cheers, Boris
Aug 8, 2022 at 7:01 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.