How to Stop a Rusty Pipe Leak With Paint

Help is at hand with modern rust-inhibiting paints.

There are many paint products available to help solve rusty pipe leaks. According to chemist and paint expert professor Steven S. Zumdahl, the general scientific principle at work is that when paint is applied, it triggers a chemical change to simultaneously strengthen existing rusty metal while preventing further rusting. In very severe cases where structural integrity is compromised, it may be best to replace the pipe altogether, or wrap it with a repair bandage.

Things You'll Need

• Wire brush
• Rust treatment paint
• Paint brush

Instructions

1. Turn off all sources of water passing through the pipe.

2. Remove any loose flakes of rust with a wire brush.

3. Apply the paint generously, especially in pitted or corroded areas.

4. Build up the thickness of paint with more than one application, if need be, to bridge over problematic spots.

Tips & Warnings

• Adhere to on-can instructional advice, if necessary.

References

• "Chemical Principles"; Steven S. Zumdahl; 2007

Resources

• Inter State Products Inc.: Paint Over Rust Fact Sheet
• Navysteel: Navysteel Rust Converter / Primer