Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - underbody belly pan DIYing, rust from bolt/screw holes?

JRMichler · 11-02-2012, 02:06 PM

I've been thinking about the same thing and for the same reason.

I plan to first squirt on a shot of primer, let it dry, then glob on some roofing tar. I have previous experience with roofing tar. That stuff seals against water so well that I have never seen rust under roofing tar. In one case, the roofing tar was about ten years old.

11-02-2012, 02:06 PM	#3 (permalink)
JRMichler Master EcoModder Join Date: Feb 2011 Location: Phillips, WI Posts: 1,018 Nameless - '06 GMC Canyon 90 day: 37.45 mpg (US) 22 Maverick - '22 Ford Maverick XL 90 day: 47.03 mpg (US) Thanks: 192 Thanked 467 Times in 287 Posts	I've been thinking about the same thing and for the same reason. I plan to first squirt on a shot of primer, let it dry, then glob on some roofing tar. I have previous experience with roofing tar. That stuff seals against water so well that I have never seen rust under roofing tar. In one case, the roofing tar was about ten years old. __________________ 06 Canyon: The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 33,021 miles 2016-2018 at 35.00 MPG. 22 Maverick: Summer 2022 burned 62.74 gallons in 3145.1 miles for 50.1 MPG. Winter 2023-2024 - 2416.7 miles, 58.66 gallons for 41 MPG.